28948920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1$

素因数の和:286

約数の個数: 256

約数和(自身を含む): 117089280

約数和(自身を除く): 88140360

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, 165, 168, 182, 195, 210, 220, 231, 241, 260, 264, 273, 280, 286, 308, 312, 330, 364, 385, 390, 420, 429, 440, 455, 462, 482, 520, 546, 572, 616, 660, 715, 723, 728, 770, 780, 840, 858, 910, 924, 964, 1001, 1092, 1144, 1155, 1205, 1320, 1365, 1430, 1446, 1540, 1560, 1687, 1716, 1820, 1848, 1928, 2002, 2145, 2184, 2310, 2410, 2651, 2730, 2860, 2892, 3003, 3080, 3133, 3374, 3432, 3615, 3640, 4004, 4290, 4620, 4820, 5005, 5061, 5302, 5460, 5720, 5784, 6006, 6266, 6748, 7230, 7953, 8008, 8435, 8580, 9240, 9399, 9640, 10010, 10122, 10604, 10920, 12012, 12532, 13255, 13496, 14460, 15015, 15665, 15906, 16870, 17160, 18557, 18798, 20020, 20244, 21208, 21931, 24024, 25064, 25305, 26510, 28920, 30030, 31330, 31812, 33740, 34463, 37114, 37596, 39765, 40040, 40488, 43862, 46995, 50610, 53020, 55671, 60060, 62660, 63624, 65793, 67480, 68926, 74228, 75192, 79530, 87724, 92785, 93990, 101220, 103389, 106040, 109655, 111342, 120120, 125320, 131586, 137852, 148456, 159060, 172315, 175448, 185570, 187980, 202440, 206778, 219310, 222684, 241241, 263172, 275704, 278355, 318120, 328965, 344630, 371140, 375960, 413556, 438620, 445368, 482482, 516945, 526344, 556710, 657930, 689260, 723723, 742280, 827112, 877240, 964964, 1033890, 1113420, 1206205, 1315860, 1378520, 1447446, 1929928, 2067780, 2226840, 2412410, 2631720, 2894892, 3618615, 4135560, 4824820, 5789784, 7237230, 9649640, 14474460, 28948920]

約数ペア:

[(1, 28948920), (2, 14474460), (3, 9649640), (4, 7237230), (5, 5789784), (6, 4824820), (7, 4135560), (8, 3618615), (10, 2894892), (11, 2631720), (12, 2412410), (13, 2226840), (14, 2067780), (15, 1929928), (20, 1447446), (21, 1378520), (22, 1315860), (24, 1206205), (26, 1113420), (28, 1033890), (30, 964964), (33, 877240), (35, 827112), (39, 742280), (40, 723723), (42, 689260), (44, 657930), (52, 556710), (55, 526344), (56, 516945), (60, 482482), (65, 445368), (66, 438620), (70, 413556), (77, 375960), (78, 371140), (84, 344630), (88, 328965), (91, 318120), (104, 278355), (105, 275704), (110, 263172), (120, 241241), (130, 222684), (132, 219310), (140, 206778), (143, 202440), (154, 187980), (156, 185570), (165, 175448), (168, 172315), (182, 159060), (195, 148456), (210, 137852), (220, 131586), (231, 125320), (241, 120120), (260, 111342), (264, 109655), (273, 106040), (280, 103389), (286, 101220), (308, 93990), (312, 92785), (330, 87724), (364, 79530), (385, 75192), (390, 74228), (420, 68926), (429, 67480), (440, 65793), (455, 63624), (462, 62660), (482, 60060), (520, 55671), (546, 53020), (572, 50610), (616, 46995), (660, 43862), (715, 40488), (723, 40040), (728, 39765), (770, 37596), (780, 37114), (840, 34463), (858, 33740), (910, 31812), (924, 31330), (964, 30030), (1001, 28920), (1092, 26510), (1144, 25305), (1155, 25064), (1205, 24024), (1320, 21931), (1365, 21208), (1430, 20244), (1446, 20020), (1540, 18798), (1560, 18557), (1687, 17160), (1716, 16870), (1820, 15906), (1848, 15665), (1928, 15015), (2002, 14460), (2145, 13496), (2184, 13255), (2310, 12532), (2410, 12012), (2651, 10920), (2730, 10604), (2860, 10122), (2892, 10010), (3003, 9640), (3080, 9399), (3133, 9240), (3374, 8580), (3432, 8435), (3615, 8008), (3640, 7953), (4004, 7230), (4290, 6748), (4620, 6266), (4820, 6006), (5005, 5784), (5061, 5720), (5302, 5460)]