66336280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{877}}^1$

素因数の和:980

約数の個数: 64

約数和(自身を含む): 156775680

約数和(自身を除く): 90439400

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 61, 62, 122, 124, 155, 244, 248, 305, 310, 488, 610, 620, 877, 1220, 1240, 1754, 1891, 2440, 3508, 3782, 4385, 7016, 7564, 8770, 9455, 15128, 17540, 18910, 27187, 35080, 37820, 53497, 54374, 75640, 106994, 108748, 135935, 213988, 217496, 267485, 271870, 427976, 534970, 543740, 1069940, 1087480, 1658407, 2139880, 3316814, 6633628, 8292035, 13267256, 16584070, 33168140, 66336280]

約数ペア:

[(1, 66336280), (2, 33168140), (4, 16584070), (5, 13267256), (8, 8292035), (10, 6633628), (20, 3316814), (31, 2139880), (40, 1658407), (61, 1087480), (62, 1069940), (122, 543740), (124, 534970), (155, 427976), (244, 271870), (248, 267485), (305, 217496), (310, 213988), (488, 135935), (610, 108748), (620, 106994), (877, 75640), (1220, 54374), (1240, 53497), (1754, 37820), (1891, 35080), (2440, 27187), (3508, 18910), (3782, 17540), (4385, 15128), (7016, 9455), (7564, 8770)]