78876400

素因数分解:

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

素因数の和:6410

約数の個数: 60

約数和(自身を含む): 195644224

約数和(自身を除く): 116767824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 155, 200, 248, 310, 400, 496, 620, 775, 1240, 1550, 2480, 3100, 6200, 6361, 12400, 12722, 25444, 31805, 50888, 63610, 101776, 127220, 159025, 197191, 254440, 318050, 394382, 508880, 636100, 788764, 985955, 1272200, 1577528, 1971910, 2544400, 3155056, 3943820, 4929775, 7887640, 9859550, 15775280, 19719100, 39438200, 78876400]

約数ペア:

[(1, 78876400), (2, 39438200), (4, 19719100), (5, 15775280), (8, 9859550), (10, 7887640), (16, 4929775), (20, 3943820), (25, 3155056), (31, 2544400), (40, 1971910), (50, 1577528), (62, 1272200), (80, 985955), (100, 788764), (124, 636100), (155, 508880), (200, 394382), (248, 318050), (310, 254440), (400, 197191), (496, 159025), (620, 127220), (775, 101776), (1240, 63610), (1550, 50888), (2480, 31805), (3100, 25444), (6200, 12722), (6361, 12400)]