40414940

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{211}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 87223584

約数和(自身を除く): 46808644

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 157, 211, 244, 305, 314, 422, 610, 628, 785, 844, 1055, 1220, 1570, 2110, 3140, 4220, 9577, 12871, 19154, 25742, 33127, 38308, 47885, 51484, 64355, 66254, 95770, 128710, 132508, 165635, 191540, 257420, 331270, 662540, 2020747, 4041494, 8082988, 10103735, 20207470, 40414940]

約数ペア:

[(1, 40414940), (2, 20207470), (4, 10103735), (5, 8082988), (10, 4041494), (20, 2020747), (61, 662540), (122, 331270), (157, 257420), (211, 191540), (244, 165635), (305, 132508), (314, 128710), (422, 95770), (610, 66254), (628, 64355), (785, 51484), (844, 47885), (1055, 38308), (1220, 33127), (1570, 25742), (2110, 19154), (3140, 12871), (4220, 9577)]