18858840

素因数分解:

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

素因数の和:202

約数の個数: 256

約数和(自身を含む): 76446720

約数和(自身を除く): 57587880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 20, 21, 22, 24, 26, 28, 30, 33, 35, 39, 40, 42, 44, 52, 55, 56, 60, 65, 66, 70, 77, 78, 84, 88, 91, 104, 105, 110, 120, 130, 132, 140, 143, 154, 156, 157, 165, 168, 182, 195, 210, 220, 231, 260, 264, 273, 280, 286, 308, 312, 314, 330, 364, 385, 390, 420, 429, 440, 455, 462, 471, 520, 546, 572, 616, 628, 660, 715, 728, 770, 780, 785, 840, 858, 910, 924, 942, 1001, 1092, 1099, 1144, 1155, 1256, 1320, 1365, 1430, 1540, 1560, 1570, 1716, 1727, 1820, 1848, 1884, 2002, 2041, 2145, 2184, 2198, 2310, 2355, 2730, 2860, 3003, 3080, 3140, 3297, 3432, 3454, 3640, 3768, 4004, 4082, 4290, 4396, 4620, 4710, 5005, 5181, 5460, 5495, 5720, 6006, 6123, 6280, 6594, 6908, 8008, 8164, 8580, 8635, 8792, 9240, 9420, 10010, 10205, 10362, 10920, 10990, 12012, 12089, 12246, 13188, 13816, 14287, 15015, 16328, 16485, 17160, 17270, 18840, 20020, 20410, 20724, 21980, 22451, 24024, 24178, 24492, 25905, 26376, 28574, 30030, 30615, 32970, 34540, 36267, 40040, 40820, 41448, 42861, 43960, 44902, 48356, 48984, 51810, 57148, 60060, 60445, 61230, 65940, 67353, 69080, 71435, 72534, 81640, 85722, 89804, 96712, 103620, 112255, 114296, 120120, 120890, 122460, 131880, 134706, 142870, 145068, 157157, 171444, 179608, 181335, 207240, 214305, 224510, 241780, 244920, 269412, 285740, 290136, 314314, 336765, 342888, 362670, 428610, 449020, 471471, 483560, 538824, 571480, 628628, 673530, 725340, 785785, 857220, 898040, 942942, 1257256, 1347060, 1450680, 1571570, 1714440, 1885884, 2357355, 2694120, 3143140, 3771768, 4714710, 6286280, 9429420, 18858840]

約数ペア:

[(1, 18858840), (2, 9429420), (3, 6286280), (4, 4714710), (5, 3771768), (6, 3143140), (7, 2694120), (8, 2357355), (10, 1885884), (11, 1714440), (12, 1571570), (13, 1450680), (14, 1347060), (15, 1257256), (20, 942942), (21, 898040), (22, 857220), (24, 785785), (26, 725340), (28, 673530), (30, 628628), (33, 571480), (35, 538824), (39, 483560), (40, 471471), (42, 449020), (44, 428610), (52, 362670), (55, 342888), (56, 336765), (60, 314314), (65, 290136), (66, 285740), (70, 269412), (77, 244920), (78, 241780), (84, 224510), (88, 214305), (91, 207240), (104, 181335), (105, 179608), (110, 171444), (120, 157157), (130, 145068), (132, 142870), (140, 134706), (143, 131880), (154, 122460), (156, 120890), (157, 120120), (165, 114296), (168, 112255), (182, 103620), (195, 96712), (210, 89804), (220, 85722), (231, 81640), (260, 72534), (264, 71435), (273, 69080), (280, 67353), (286, 65940), (308, 61230), (312, 60445), (314, 60060), (330, 57148), (364, 51810), (385, 48984), (390, 48356), (420, 44902), (429, 43960), (440, 42861), (455, 41448), (462, 40820), (471, 40040), (520, 36267), (546, 34540), (572, 32970), (616, 30615), (628, 30030), (660, 28574), (715, 26376), (728, 25905), (770, 24492), (780, 24178), (785, 24024), (840, 22451), (858, 21980), (910, 20724), (924, 20410), (942, 20020), (1001, 18840), (1092, 17270), (1099, 17160), (1144, 16485), (1155, 16328), (1256, 15015), (1320, 14287), (1365, 13816), (1430, 13188), (1540, 12246), (1560, 12089), (1570, 12012), (1716, 10990), (1727, 10920), (1820, 10362), (1848, 10205), (1884, 10010), (2002, 9420), (2041, 9240), (2145, 8792), (2184, 8635), (2198, 8580), (2310, 8164), (2355, 8008), (2730, 6908), (2860, 6594), (3003, 6280), (3080, 6123), (3140, 6006), (3297, 5720), (3432, 5495), (3454, 5460), (3640, 5181), (3768, 5005), (4004, 4710), (4082, 4620), (4290, 4396)]