51679480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{587}}^1$

素因数の和:700

約数の個数: 64

約数和(自身を含む): 121927680

約数和(自身を除く): 70248200

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 71, 124, 142, 155, 248, 284, 310, 355, 568, 587, 620, 710, 1174, 1240, 1420, 2201, 2348, 2840, 2935, 4402, 4696, 5870, 8804, 11005, 11740, 17608, 18197, 22010, 23480, 36394, 41677, 44020, 72788, 83354, 88040, 90985, 145576, 166708, 181970, 208385, 333416, 363940, 416770, 727880, 833540, 1291987, 1667080, 2583974, 5167948, 6459935, 10335896, 12919870, 25839740, 51679480]

約数ペア:

[(1, 51679480), (2, 25839740), (4, 12919870), (5, 10335896), (8, 6459935), (10, 5167948), (20, 2583974), (31, 1667080), (40, 1291987), (62, 833540), (71, 727880), (124, 416770), (142, 363940), (155, 333416), (248, 208385), (284, 181970), (310, 166708), (355, 145576), (568, 90985), (587, 88040), (620, 83354), (710, 72788), (1174, 44020), (1240, 41677), (1420, 36394), (2201, 23480), (2348, 22010), (2840, 18197), (2935, 17608), (4402, 11740), (4696, 11005), (5870, 8804)]