249441320

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{1213}}^1$

素因数の和:1374

約数の個数: 64

約数和(自身を含む): 578203920

約数和(自身を除く): 328762600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 97, 106, 194, 212, 265, 388, 424, 485, 530, 776, 970, 1060, 1213, 1940, 2120, 2426, 3880, 4852, 5141, 6065, 9704, 10282, 12130, 20564, 24260, 25705, 41128, 48520, 51410, 64289, 102820, 117661, 128578, 205640, 235322, 257156, 321445, 470644, 514312, 588305, 642890, 941288, 1176610, 1285780, 2353220, 2571560, 4706440, 6236033, 12472066, 24944132, 31180165, 49888264, 62360330, 124720660, 249441320]

約数ペア:

[(1, 249441320), (2, 124720660), (4, 62360330), (5, 49888264), (8, 31180165), (10, 24944132), (20, 12472066), (40, 6236033), (53, 4706440), (97, 2571560), (106, 2353220), (194, 1285780), (212, 1176610), (265, 941288), (388, 642890), (424, 588305), (485, 514312), (530, 470644), (776, 321445), (970, 257156), (1060, 235322), (1213, 205640), (1940, 128578), (2120, 117661), (2426, 102820), (3880, 64289), (4852, 51410), (5141, 48520), (6065, 41128), (9704, 25705), (10282, 24260), (12130, 20564)]