217007750

素因数分解:

$2^1\times 5^3\times {\mathrm{31}}^1\times {\mathrm{28001}}^1$

素因数の和:28049

約数の個数: 32

約数和(自身を含む): 419357952

約数和(自身を除く): 202350202

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 125, 155, 250, 310, 775, 1550, 3875, 7750, 28001, 56002, 140005, 280010, 700025, 868031, 1400050, 1736062, 3500125, 4340155, 7000250, 8680310, 21700775, 43401550, 108503875, 217007750]

約数ペア:

[(1, 217007750), (2, 108503875), (5, 43401550), (10, 21700775), (25, 8680310), (31, 7000250), (50, 4340155), (62, 3500125), (125, 1736062), (155, 1400050), (250, 868031), (310, 700025), (775, 280010), (1550, 140005), (3875, 56002), (7750, 28001)]