280474112

素因数分解:

$2^9\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{431}}^1$

素因数の和:521

約数の個数: 80

約数和(自身を含む): 593961984

約数和(自身を除く): 313487872

約数列:

[1, 2, 4, 8, 16, 31, 32, 41, 62, 64, 82, 124, 128, 164, 248, 256, 328, 431, 496, 512, 656, 862, 992, 1271, 1312, 1724, 1984, 2542, 2624, 3448, 3968, 5084, 5248, 6896, 7936, 10168, 10496, 13361, 13792, 15872, 17671, 20336, 20992, 26722, 27584, 35342, 40672, 53444, 55168, 70684, 81344, 106888, 110336, 141368, 162688, 213776, 220672, 282736, 325376, 427552, 547801, 565472, 650752, 855104, 1095602, 1130944, 1710208, 2191204, 2261888, 3420416, 4382408, 4523776, 6840832, 8764816, 9047552, 17529632, 35059264, 70118528, 140237056, 280474112]

約数ペア:

[(1, 280474112), (2, 140237056), (4, 70118528), (8, 35059264), (16, 17529632), (31, 9047552), (32, 8764816), (41, 6840832), (62, 4523776), (64, 4382408), (82, 3420416), (124, 2261888), (128, 2191204), (164, 1710208), (248, 1130944), (256, 1095602), (328, 855104), (431, 650752), (496, 565472), (512, 547801), (656, 427552), (862, 325376), (992, 282736), (1271, 220672), (1312, 213776), (1724, 162688), (1984, 141368), (2542, 110336), (2624, 106888), (3448, 81344), (3968, 70684), (5084, 55168), (5248, 53444), (6896, 40672), (7936, 35342), (10168, 27584), (10496, 26722), (13361, 20992), (13792, 20336), (15872, 17671)]