65201680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{431}}^1$

素因数の和:536

約数の個数: 80

約数和(自身を含む): 159418368

約数和(自身を除く): 94216688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 61, 62, 80, 122, 124, 155, 244, 248, 305, 310, 431, 488, 496, 610, 620, 862, 976, 1220, 1240, 1724, 1891, 2155, 2440, 2480, 3448, 3782, 4310, 4880, 6896, 7564, 8620, 9455, 13361, 15128, 17240, 18910, 26291, 26722, 30256, 34480, 37820, 52582, 53444, 66805, 75640, 105164, 106888, 131455, 133610, 151280, 210328, 213776, 262910, 267220, 420656, 525820, 534440, 815021, 1051640, 1068880, 1630042, 2103280, 3260084, 4075105, 6520168, 8150210, 13040336, 16300420, 32600840, 65201680]

約数ペア:

[(1, 65201680), (2, 32600840), (4, 16300420), (5, 13040336), (8, 8150210), (10, 6520168), (16, 4075105), (20, 3260084), (31, 2103280), (40, 1630042), (61, 1068880), (62, 1051640), (80, 815021), (122, 534440), (124, 525820), (155, 420656), (244, 267220), (248, 262910), (305, 213776), (310, 210328), (431, 151280), (488, 133610), (496, 131455), (610, 106888), (620, 105164), (862, 75640), (976, 66805), (1220, 53444), (1240, 52582), (1724, 37820), (1891, 34480), (2155, 30256), (2440, 26722), (2480, 26291), (3448, 18910), (3782, 17240), (4310, 15128), (4880, 13361), (6896, 9455), (7564, 8620)]