39860142040

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{409}}^1\times {\mathrm{30841}}^1$

素因数の和:31340

約数の個数: 64

約数和(自身を含む): 91045584000

約数和(自身を除く): 51185441960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 409, 632, 790, 818, 1580, 1636, 2045, 3160, 3272, 4090, 8180, 16360, 30841, 32311, 61682, 64622, 123364, 129244, 154205, 161555, 246728, 258488, 308410, 323110, 616820, 646220, 1233640, 1292440, 2436439, 4872878, 9745756, 12182195, 12613969, 19491512, 24364390, 25227938, 48728780, 50455876, 63069845, 97457560, 100911752, 126139690, 252279380, 504558760, 996503551, 1993007102, 3986014204, 4982517755, 7972028408, 9965035510, 19930071020, 39860142040]

約数ペア:

[(1, 39860142040), (2, 19930071020), (4, 9965035510), (5, 7972028408), (8, 4982517755), (10, 3986014204), (20, 1993007102), (40, 996503551), (79, 504558760), (158, 252279380), (316, 126139690), (395, 100911752), (409, 97457560), (632, 63069845), (790, 50455876), (818, 48728780), (1580, 25227938), (1636, 24364390), (2045, 19491512), (3160, 12613969), (3272, 12182195), (4090, 9745756), (8180, 4872878), (16360, 2436439), (30841, 1292440), (32311, 1233640), (61682, 646220), (64622, 616820), (123364, 323110), (129244, 308410), (154205, 258488), (161555, 246728)]