20315560

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{26731}}^1$

素因数の和:26761

約数の個数: 32

約数和(自身を含む): 48117600

約数和(自身を除く): 27802040

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 26731, 53462, 106924, 133655, 213848, 267310, 507889, 534620, 1015778, 1069240, 2031556, 2539445, 4063112, 5078890, 10157780, 20315560]

約数ペア:

[(1, 20315560), (2, 10157780), (4, 5078890), (5, 4063112), (8, 2539445), (10, 2031556), (19, 1069240), (20, 1015778), (38, 534620), (40, 507889), (76, 267310), (95, 213848), (152, 133655), (190, 106924), (380, 53462), (760, 26731)]