251361640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1$

素因数の和:335

約数の個数: 128

約数和(自身を含む): 630374400

約数和(自身を除く): 379012760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 47, 62, 76, 94, 95, 124, 152, 155, 188, 190, 227, 235, 248, 310, 376, 380, 454, 470, 589, 620, 760, 893, 908, 940, 1135, 1178, 1240, 1457, 1786, 1816, 1880, 2270, 2356, 2914, 2945, 3572, 4313, 4465, 4540, 4712, 5828, 5890, 7037, 7144, 7285, 8626, 8930, 9080, 10669, 11656, 11780, 14074, 14570, 17252, 17860, 21338, 21565, 23560, 27683, 28148, 29140, 34504, 35185, 35720, 42676, 43130, 53345, 55366, 56296, 58280, 70370, 85352, 86260, 106690, 110732, 133703, 138415, 140740, 172520, 202711, 213380, 221464, 267406, 276830, 281480, 330739, 405422, 426760, 534812, 553660, 661478, 668515, 810844, 1013555, 1069624, 1107320, 1322956, 1337030, 1621688, 1653695, 2027110, 2645912, 2674060, 3307390, 4054220, 5348120, 6284041, 6614780, 8108440, 12568082, 13229560, 25136164, 31420205, 50272328, 62840410, 125680820, 251361640]

約数ペア:

[(1, 251361640), (2, 125680820), (4, 62840410), (5, 50272328), (8, 31420205), (10, 25136164), (19, 13229560), (20, 12568082), (31, 8108440), (38, 6614780), (40, 6284041), (47, 5348120), (62, 4054220), (76, 3307390), (94, 2674060), (95, 2645912), (124, 2027110), (152, 1653695), (155, 1621688), (188, 1337030), (190, 1322956), (227, 1107320), (235, 1069624), (248, 1013555), (310, 810844), (376, 668515), (380, 661478), (454, 553660), (470, 534812), (589, 426760), (620, 405422), (760, 330739), (893, 281480), (908, 276830), (940, 267406), (1135, 221464), (1178, 213380), (1240, 202711), (1457, 172520), (1786, 140740), (1816, 138415), (1880, 133703), (2270, 110732), (2356, 106690), (2914, 86260), (2945, 85352), (3572, 70370), (4313, 58280), (4465, 56296), (4540, 55366), (4712, 53345), (5828, 43130), (5890, 42676), (7037, 35720), (7144, 35185), (7285, 34504), (8626, 29140), (8930, 28148), (9080, 27683), (10669, 23560), (11656, 21565), (11780, 21338), (14074, 17860), (14570, 17252)]