401220560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{1217}}^1$

素因数の和:1560

約数の個数: 80

約数和(自身を含む): 1008591696

約数和(自身を除く): 607371136

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 317, 520, 634, 1040, 1217, 1268, 1585, 2434, 2536, 3170, 4121, 4868, 5072, 6085, 6340, 8242, 9736, 12170, 12680, 15821, 16484, 19472, 20605, 24340, 25360, 31642, 32968, 41210, 48680, 63284, 65936, 79105, 82420, 97360, 126568, 158210, 164840, 253136, 316420, 329680, 385789, 632840, 771578, 1265680, 1543156, 1928945, 3086312, 3857890, 5015257, 6172624, 7715780, 10030514, 15431560, 20061028, 25076285, 30863120, 40122056, 50152570, 80244112, 100305140, 200610280, 401220560]

約数ペア:

[(1, 401220560), (2, 200610280), (4, 100305140), (5, 80244112), (8, 50152570), (10, 40122056), (13, 30863120), (16, 25076285), (20, 20061028), (26, 15431560), (40, 10030514), (52, 7715780), (65, 6172624), (80, 5015257), (104, 3857890), (130, 3086312), (208, 1928945), (260, 1543156), (317, 1265680), (520, 771578), (634, 632840), (1040, 385789), (1217, 329680), (1268, 316420), (1585, 253136), (2434, 164840), (2536, 158210), (3170, 126568), (4121, 97360), (4868, 82420), (5072, 79105), (6085, 65936), (6340, 63284), (8242, 48680), (9736, 41210), (12170, 32968), (12680, 31642), (15821, 25360), (16484, 24340), (19472, 20605)]