20184202880

素因数分解:

$2^7\times 5^1\times {\mathrm{5431}}^1\times {\mathrm{5807}}^1$

素因数の和:11257

約数の個数: 64

約数和(自身を含む): 48270055680

約数和(自身を除く): 28085852800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 5431, 5807, 10862, 11614, 21724, 23228, 27155, 29035, 43448, 46456, 54310, 58070, 86896, 92912, 108620, 116140, 173792, 185824, 217240, 232280, 347584, 371648, 434480, 464560, 695168, 743296, 868960, 929120, 1737920, 1858240, 3475840, 3716480, 31537817, 63075634, 126151268, 157689085, 252302536, 315378170, 504605072, 630756340, 1009210144, 1261512680, 2018420288, 2523025360, 4036840576, 5046050720, 10092101440, 20184202880]

約数ペア:

[(1, 20184202880), (2, 10092101440), (4, 5046050720), (5, 4036840576), (8, 2523025360), (10, 2018420288), (16, 1261512680), (20, 1009210144), (32, 630756340), (40, 504605072), (64, 315378170), (80, 252302536), (128, 157689085), (160, 126151268), (320, 63075634), (640, 31537817), (5431, 3716480), (5807, 3475840), (10862, 1858240), (11614, 1737920), (21724, 929120), (23228, 868960), (27155, 743296), (29035, 695168), (43448, 464560), (46456, 434480), (54310, 371648), (58070, 347584), (86896, 232280), (92912, 217240), (108620, 185824), (116140, 173792)]