15775280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6361}}^1$

素因数の和:6405

約数の個数: 40

約数和(自身を含む): 37866624

約数和(自身を除く): 22091344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 6361, 12722, 25444, 31805, 50888, 63610, 101776, 127220, 197191, 254440, 394382, 508880, 788764, 985955, 1577528, 1971910, 3155056, 3943820, 7887640, 15775280]

約数ペア:

[(1, 15775280), (2, 7887640), (4, 3943820), (5, 3155056), (8, 1971910), (10, 1577528), (16, 985955), (20, 788764), (31, 508880), (40, 394382), (62, 254440), (80, 197191), (124, 127220), (155, 101776), (248, 63610), (310, 50888), (496, 31805), (620, 25444), (1240, 12722), (2480, 6361)]