20346701960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{733}}^1\times {\mathrm{53381}}^1$

素因数の和:54138

約数の個数: 64

約数和(自身を含む): 49369808880

約数和(自身を除く): 29023106920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 733, 1466, 2932, 3665, 5864, 7330, 9529, 14660, 19058, 29320, 38116, 47645, 53381, 76232, 95290, 106762, 190580, 213524, 266905, 381160, 427048, 533810, 693953, 1067620, 1387906, 2135240, 2775812, 3469765, 5551624, 6939530, 13879060, 27758120, 39128273, 78256546, 156513092, 195641365, 313026184, 391282730, 508667549, 782565460, 1017335098, 1565130920, 2034670196, 2543337745, 4069340392, 5086675490, 10173350980, 20346701960]

約数ペア:

[(1, 20346701960), (2, 10173350980), (4, 5086675490), (5, 4069340392), (8, 2543337745), (10, 2034670196), (13, 1565130920), (20, 1017335098), (26, 782565460), (40, 508667549), (52, 391282730), (65, 313026184), (104, 195641365), (130, 156513092), (260, 78256546), (520, 39128273), (733, 27758120), (1466, 13879060), (2932, 6939530), (3665, 5551624), (5864, 3469765), (7330, 2775812), (9529, 2135240), (14660, 1387906), (19058, 1067620), (29320, 693953), (38116, 533810), (47645, 427048), (53381, 381160), (76232, 266905), (95290, 213524), (106762, 190580)]