51534860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{193}}^1$

素因数の和:307

約数の個数: 72

約数和(自身を含む): 119286720

約数和(自身を除く): 67751860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 169, 193, 260, 316, 338, 386, 395, 676, 772, 790, 845, 965, 1027, 1580, 1690, 1930, 2054, 2509, 3380, 3860, 4108, 5018, 5135, 10036, 10270, 12545, 13351, 15247, 20540, 25090, 26702, 30494, 32617, 50180, 53404, 60988, 65234, 66755, 76235, 130468, 133510, 152470, 163085, 198211, 267020, 304940, 326170, 396422, 652340, 792844, 991055, 1982110, 2576743, 3964220, 5153486, 10306972, 12883715, 25767430, 51534860]

約数ペア:

[(1, 51534860), (2, 25767430), (4, 12883715), (5, 10306972), (10, 5153486), (13, 3964220), (20, 2576743), (26, 1982110), (52, 991055), (65, 792844), (79, 652340), (130, 396422), (158, 326170), (169, 304940), (193, 267020), (260, 198211), (316, 163085), (338, 152470), (386, 133510), (395, 130468), (676, 76235), (772, 66755), (790, 65234), (845, 60988), (965, 53404), (1027, 50180), (1580, 32617), (1690, 30494), (1930, 26702), (2054, 25090), (2509, 20540), (3380, 15247), (3860, 13351), (4108, 12545), (5018, 10270), (5135, 10036)]