220123250

素因数分解:

$2^1\times 5^3\times {\mathrm{31}}^1\times {\mathrm{28403}}^1$

素因数の和:28451

約数の個数: 32

約数和(自身を含む): 425378304

約数和(自身を除く): 205255054

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 125, 155, 250, 310, 775, 1550, 3875, 7750, 28403, 56806, 142015, 284030, 710075, 880493, 1420150, 1760986, 3550375, 4402465, 7100750, 8804930, 22012325, 44024650, 110061625, 220123250]

約数ペア:

[(1, 220123250), (2, 110061625), (5, 44024650), (10, 22012325), (25, 8804930), (31, 7100750), (50, 4402465), (62, 3550375), (125, 1760986), (155, 1420150), (250, 880493), (310, 710075), (775, 284030), (1550, 142015), (3875, 56806), (7750, 28403)]