201421040

素因数分解:

$2^4\times 5^1\times {\mathrm{677}}^1\times {\mathrm{3719}}^1$

素因数の和:4409

約数の個数: 40

約数和(自身を含む): 469121760

約数和(自身を除く): 267700720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 677, 1354, 2708, 3385, 3719, 5416, 6770, 7438, 10832, 13540, 14876, 18595, 27080, 29752, 37190, 54160, 59504, 74380, 148760, 297520, 2517763, 5035526, 10071052, 12588815, 20142104, 25177630, 40284208, 50355260, 100710520, 201421040]

約数ペア:

[(1, 201421040), (2, 100710520), (4, 50355260), (5, 40284208), (8, 25177630), (10, 20142104), (16, 12588815), (20, 10071052), (40, 5035526), (80, 2517763), (677, 297520), (1354, 148760), (2708, 74380), (3385, 59504), (3719, 54160), (5416, 37190), (6770, 29752), (7438, 27080), (10832, 18595), (13540, 14876)]