51549880

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{571}}^1$

素因数の和:680

約数の個数: 64

約数和(自身を含む): 121286880

約数和(自身を除く): 69737000

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 61, 74, 122, 148, 185, 244, 296, 305, 370, 488, 571, 610, 740, 1142, 1220, 1480, 2257, 2284, 2440, 2855, 4514, 4568, 5710, 9028, 11285, 11420, 18056, 21127, 22570, 22840, 34831, 42254, 45140, 69662, 84508, 90280, 105635, 139324, 169016, 174155, 211270, 278648, 348310, 422540, 696620, 845080, 1288747, 1393240, 2577494, 5154988, 6443735, 10309976, 12887470, 25774940, 51549880]

約数ペア:

[(1, 51549880), (2, 25774940), (4, 12887470), (5, 10309976), (8, 6443735), (10, 5154988), (20, 2577494), (37, 1393240), (40, 1288747), (61, 845080), (74, 696620), (122, 422540), (148, 348310), (185, 278648), (244, 211270), (296, 174155), (305, 169016), (370, 139324), (488, 105635), (571, 90280), (610, 84508), (740, 69662), (1142, 45140), (1220, 42254), (1480, 34831), (2257, 22840), (2284, 22570), (2440, 21127), (2855, 18056), (4514, 11420), (4568, 11285), (5710, 9028)]