20797046920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{850943}}^1$

素因数の和:851014

約数の個数: 64

約数和(自身を含む): 51465093120

約数和(自身を除く): 30668046200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 47, 52, 65, 94, 104, 130, 188, 235, 260, 376, 470, 520, 611, 940, 1222, 1880, 2444, 3055, 4888, 6110, 12220, 24440, 850943, 1701886, 3403772, 4254715, 6807544, 8509430, 11062259, 17018860, 22124518, 34037720, 39994321, 44249036, 55311295, 79988642, 88498072, 110622590, 159977284, 199971605, 221245180, 319954568, 399943210, 442490360, 519926173, 799886420, 1039852346, 1599772840, 2079704692, 2599630865, 4159409384, 5199261730, 10398523460, 20797046920]

約数ペア:

[(1, 20797046920), (2, 10398523460), (4, 5199261730), (5, 4159409384), (8, 2599630865), (10, 2079704692), (13, 1599772840), (20, 1039852346), (26, 799886420), (40, 519926173), (47, 442490360), (52, 399943210), (65, 319954568), (94, 221245180), (104, 199971605), (130, 159977284), (188, 110622590), (235, 88498072), (260, 79988642), (376, 55311295), (470, 44249036), (520, 39994321), (611, 34037720), (940, 22124518), (1222, 17018860), (1880, 11062259), (2444, 8509430), (3055, 6807544), (4888, 4254715), (6110, 3403772), (12220, 1701886), (24440, 850943)]