259690720

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1277}}^1$

素因数の和:1364

約数の個数: 96

約数和(自身を含む): 649264896

約数和(自身を除く): 389574176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 41, 62, 80, 82, 124, 155, 160, 164, 205, 248, 310, 328, 410, 496, 620, 656, 820, 992, 1240, 1271, 1277, 1312, 1640, 2480, 2542, 2554, 3280, 4960, 5084, 5108, 6355, 6385, 6560, 10168, 10216, 12710, 12770, 20336, 20432, 25420, 25540, 39587, 40672, 40864, 50840, 51080, 52357, 79174, 101680, 102160, 104714, 158348, 197935, 203360, 204320, 209428, 261785, 316696, 395870, 418856, 523570, 633392, 791740, 837712, 1047140, 1266784, 1583480, 1623067, 1675424, 2094280, 3166960, 3246134, 4188560, 6333920, 6492268, 8115335, 8377120, 12984536, 16230670, 25969072, 32461340, 51938144, 64922680, 129845360, 259690720]

約数ペア:

[(1, 259690720), (2, 129845360), (4, 64922680), (5, 51938144), (8, 32461340), (10, 25969072), (16, 16230670), (20, 12984536), (31, 8377120), (32, 8115335), (40, 6492268), (41, 6333920), (62, 4188560), (80, 3246134), (82, 3166960), (124, 2094280), (155, 1675424), (160, 1623067), (164, 1583480), (205, 1266784), (248, 1047140), (310, 837712), (328, 791740), (410, 633392), (496, 523570), (620, 418856), (656, 395870), (820, 316696), (992, 261785), (1240, 209428), (1271, 204320), (1277, 203360), (1312, 197935), (1640, 158348), (2480, 104714), (2542, 102160), (2554, 101680), (3280, 79174), (4960, 52357), (5084, 51080), (5108, 50840), (6355, 40864), (6385, 40672), (6560, 39587), (10168, 25540), (10216, 25420), (12710, 20432), (12770, 20336)]