20900590

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{743}}^1$

素因数の和:876

約数の個数: 32

約数和(自身を含む): 39372480

約数和(自身を除く): 18471890

約数列:

[1, 2, 5, 10, 29, 58, 97, 145, 194, 290, 485, 743, 970, 1486, 2813, 3715, 5626, 7430, 14065, 21547, 28130, 43094, 72071, 107735, 144142, 215470, 360355, 720710, 2090059, 4180118, 10450295, 20900590]

約数ペア:

[(1, 20900590), (2, 10450295), (5, 4180118), (10, 2090059), (29, 720710), (58, 360355), (97, 215470), (145, 144142), (194, 107735), (290, 72071), (485, 43094), (743, 28130), (970, 21547), (1486, 14065), (2813, 7430), (3715, 5626)]