391290928

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{449}}^1$

素因数の和:746

約数の個数: 80

約数和(自身を含む): 899942400

約数和(自身を除く): 508651472

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 251, 434, 449, 496, 502, 868, 898, 1004, 1736, 1757, 1796, 2008, 3143, 3472, 3514, 3592, 4016, 6286, 7028, 7184, 7781, 12572, 13919, 14056, 15562, 25144, 27838, 28112, 31124, 50288, 54467, 55676, 62248, 97433, 108934, 111352, 112699, 124496, 194866, 217868, 222704, 225398, 389732, 435736, 450796, 779464, 788893, 871472, 901592, 1558928, 1577786, 1803184, 3155572, 3493669, 6311144, 6987338, 12622288, 13974676, 24455683, 27949352, 48911366, 55898704, 97822732, 195645464, 391290928]

約数ペア:

[(1, 391290928), (2, 195645464), (4, 97822732), (7, 55898704), (8, 48911366), (14, 27949352), (16, 24455683), (28, 13974676), (31, 12622288), (56, 6987338), (62, 6311144), (112, 3493669), (124, 3155572), (217, 1803184), (248, 1577786), (251, 1558928), (434, 901592), (449, 871472), (496, 788893), (502, 779464), (868, 450796), (898, 435736), (1004, 389732), (1736, 225398), (1757, 222704), (1796, 217868), (2008, 194866), (3143, 124496), (3472, 112699), (3514, 111352), (3592, 108934), (4016, 97433), (6286, 62248), (7028, 55676), (7184, 54467), (7781, 50288), (12572, 31124), (13919, 28112), (14056, 27838), (15562, 25144)]