31615480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{373}}^1$

素因数の和:560

約数の個数: 64

約数和(自身を含む): 77283360

約数和(自身を除く): 45667880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 163, 260, 326, 373, 520, 652, 746, 815, 1304, 1492, 1630, 1865, 2119, 2984, 3260, 3730, 4238, 4849, 6520, 7460, 8476, 9698, 10595, 14920, 16952, 19396, 21190, 24245, 38792, 42380, 48490, 60799, 84760, 96980, 121598, 193960, 243196, 303995, 486392, 607990, 790387, 1215980, 1580774, 2431960, 3161548, 3951935, 6323096, 7903870, 15807740, 31615480]

約数ペア:

[(1, 31615480), (2, 15807740), (4, 7903870), (5, 6323096), (8, 3951935), (10, 3161548), (13, 2431960), (20, 1580774), (26, 1215980), (40, 790387), (52, 607990), (65, 486392), (104, 303995), (130, 243196), (163, 193960), (260, 121598), (326, 96980), (373, 84760), (520, 60799), (652, 48490), (746, 42380), (815, 38792), (1304, 24245), (1492, 21190), (1630, 19396), (1865, 16952), (2119, 14920), (2984, 10595), (3260, 9698), (3730, 8476), (4238, 7460), (4849, 6520)]