205237360

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{82757}}^1$

素因数の和:82801

約数の個数: 40

約数和(自身を含む): 492575616

約数和(自身を除く): 287338256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 82757, 165514, 331028, 413785, 662056, 827570, 1324112, 1655140, 2565467, 3310280, 5130934, 6620560, 10261868, 12827335, 20523736, 25654670, 41047472, 51309340, 102618680, 205237360]

約数ペア:

[(1, 205237360), (2, 102618680), (4, 51309340), (5, 41047472), (8, 25654670), (10, 20523736), (16, 12827335), (20, 10261868), (31, 6620560), (40, 5130934), (62, 3310280), (80, 2565467), (124, 1655140), (155, 1324112), (248, 827570), (310, 662056), (496, 413785), (620, 331028), (1240, 165514), (2480, 82757)]