31302975

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1997}}^1$

素因数の和:2040

約数の個数: 48

約数和(自身を含む): 59460480

約数和(自身を除く): 28157505

約数列:

[1, 3, 5, 11, 15, 19, 25, 33, 55, 57, 75, 95, 165, 209, 275, 285, 475, 627, 825, 1045, 1425, 1997, 3135, 5225, 5991, 9985, 15675, 21967, 29955, 37943, 49925, 65901, 109835, 113829, 149775, 189715, 329505, 417373, 549175, 569145, 948575, 1252119, 1647525, 2086865, 2845725, 6260595, 10434325, 31302975]

約数ペア:

[(1, 31302975), (3, 10434325), (5, 6260595), (11, 2845725), (15, 2086865), (19, 1647525), (25, 1252119), (33, 948575), (55, 569145), (57, 549175), (75, 417373), (95, 329505), (165, 189715), (209, 149775), (275, 113829), (285, 109835), (475, 65901), (627, 49925), (825, 37943), (1045, 29955), (1425, 21967), (1997, 15675), (3135, 9985), (5225, 5991)]