87428680

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{70507}}^1$

素因数の和:70549

約数の個数: 32

約数和(自身を含む): 203063040

約数和(自身を除く): 115634360

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 70507, 141014, 282028, 352535, 564056, 705070, 1410140, 2185717, 2820280, 4371434, 8742868, 10928585, 17485736, 21857170, 43714340, 87428680]

約数ペア:

[(1, 87428680), (2, 43714340), (4, 21857170), (5, 17485736), (8, 10928585), (10, 8742868), (20, 4371434), (31, 2820280), (40, 2185717), (62, 1410140), (124, 705070), (155, 564056), (248, 352535), (310, 282028), (620, 141014), (1240, 70507)]