28288260

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1$

素因数の和:203

約数の個数: 288

約数和(自身を含む): 115944192

約数和(自身を除く): 87655932

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 18, 20, 21, 22, 26, 28, 30, 33, 35, 36, 39, 42, 44, 45, 52, 55, 60, 63, 65, 66, 70, 77, 78, 84, 90, 91, 99, 105, 110, 117, 126, 130, 132, 140, 143, 154, 156, 157, 165, 180, 182, 195, 198, 210, 220, 231, 234, 252, 260, 273, 286, 308, 314, 315, 330, 364, 385, 390, 396, 420, 429, 455, 462, 468, 471, 495, 546, 572, 585, 628, 630, 660, 693, 715, 770, 780, 785, 819, 858, 910, 924, 942, 990, 1001, 1092, 1099, 1155, 1170, 1260, 1287, 1365, 1386, 1413, 1430, 1540, 1570, 1638, 1716, 1727, 1820, 1884, 1980, 2002, 2041, 2145, 2198, 2310, 2340, 2355, 2574, 2730, 2772, 2826, 2860, 3003, 3140, 3276, 3297, 3454, 3465, 4004, 4082, 4095, 4290, 4396, 4620, 4710, 5005, 5148, 5181, 5460, 5495, 5652, 6006, 6123, 6435, 6594, 6908, 6930, 7065, 8164, 8190, 8580, 8635, 9009, 9420, 9891, 10010, 10205, 10362, 10990, 12012, 12089, 12246, 12870, 13188, 13860, 14130, 14287, 15015, 15543, 16380, 16485, 17270, 18018, 18369, 19782, 20020, 20410, 20724, 21980, 22451, 24178, 24492, 25740, 25905, 28260, 28574, 30030, 30615, 31086, 32970, 34540, 36036, 36267, 36738, 39564, 40820, 42861, 44902, 45045, 48356, 49455, 51810, 57148, 60060, 60445, 61230, 62172, 65940, 67353, 71435, 72534, 73476, 77715, 85722, 89804, 90090, 91845, 98910, 103620, 108801, 112255, 120890, 122460, 128583, 134706, 142870, 145068, 155430, 157157, 171444, 180180, 181335, 183690, 197820, 202059, 214305, 217602, 224510, 241780, 257166, 269412, 285740, 310860, 314314, 336765, 362670, 367380, 404118, 428610, 435204, 449020, 471471, 514332, 544005, 628628, 642915, 673530, 725340, 785785, 808236, 857220, 942942, 1010295, 1088010, 1285830, 1347060, 1414413, 1571570, 1885884, 2020590, 2176020, 2357355, 2571660, 2828826, 3143140, 4041180, 4714710, 5657652, 7072065, 9429420, 14144130, 28288260]

約数ペア:

[(1, 28288260), (2, 14144130), (3, 9429420), (4, 7072065), (5, 5657652), (6, 4714710), (7, 4041180), (9, 3143140), (10, 2828826), (11, 2571660), (12, 2357355), (13, 2176020), (14, 2020590), (15, 1885884), (18, 1571570), (20, 1414413), (21, 1347060), (22, 1285830), (26, 1088010), (28, 1010295), (30, 942942), (33, 857220), (35, 808236), (36, 785785), (39, 725340), (42, 673530), (44, 642915), (45, 628628), (52, 544005), (55, 514332), (60, 471471), (63, 449020), (65, 435204), (66, 428610), (70, 404118), (77, 367380), (78, 362670), (84, 336765), (90, 314314), (91, 310860), (99, 285740), (105, 269412), (110, 257166), (117, 241780), (126, 224510), (130, 217602), (132, 214305), (140, 202059), (143, 197820), (154, 183690), (156, 181335), (157, 180180), (165, 171444), (180, 157157), (182, 155430), (195, 145068), (198, 142870), (210, 134706), (220, 128583), (231, 122460), (234, 120890), (252, 112255), (260, 108801), (273, 103620), (286, 98910), (308, 91845), (314, 90090), (315, 89804), (330, 85722), (364, 77715), (385, 73476), (390, 72534), (396, 71435), (420, 67353), (429, 65940), (455, 62172), (462, 61230), (468, 60445), (471, 60060), (495, 57148), (546, 51810), (572, 49455), (585, 48356), (628, 45045), (630, 44902), (660, 42861), (693, 40820), (715, 39564), (770, 36738), (780, 36267), (785, 36036), (819, 34540), (858, 32970), (910, 31086), (924, 30615), (942, 30030), (990, 28574), (1001, 28260), (1092, 25905), (1099, 25740), (1155, 24492), (1170, 24178), (1260, 22451), (1287, 21980), (1365, 20724), (1386, 20410), (1413, 20020), (1430, 19782), (1540, 18369), (1570, 18018), (1638, 17270), (1716, 16485), (1727, 16380), (1820, 15543), (1884, 15015), (1980, 14287), (2002, 14130), (2041, 13860), (2145, 13188), (2198, 12870), (2310, 12246), (2340, 12089), (2355, 12012), (2574, 10990), (2730, 10362), (2772, 10205), (2826, 10010), (2860, 9891), (3003, 9420), (3140, 9009), (3276, 8635), (3297, 8580), (3454, 8190), (3465, 8164), (4004, 7065), (4082, 6930), (4095, 6908), (4290, 6594), (4396, 6435), (4620, 6123), (4710, 6006), (5005, 5652), (5148, 5495), (5181, 5460)]