18991830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1$

素因数の和:286

約数の個数: 128

約数和(自身を含む): 56609280

約数和(自身を除く): 37617450

約数列:

[1, 2, 3, 5, 6, 10, 11, 13, 15, 19, 22, 26, 30, 33, 38, 39, 55, 57, 65, 66, 78, 95, 110, 114, 130, 143, 165, 190, 195, 209, 233, 247, 285, 286, 330, 390, 418, 429, 466, 494, 570, 627, 699, 715, 741, 858, 1045, 1165, 1235, 1254, 1398, 1430, 1482, 2090, 2145, 2330, 2470, 2563, 2717, 3029, 3135, 3495, 3705, 4290, 4427, 5126, 5434, 6058, 6270, 6990, 7410, 7689, 8151, 8854, 9087, 12815, 13281, 13585, 15145, 15378, 16302, 18174, 22135, 25630, 26562, 27170, 30290, 33319, 38445, 40755, 44270, 45435, 48697, 57551, 66405, 66638, 76890, 81510, 90870, 97394, 99957, 115102, 132810, 146091, 166595, 172653, 199914, 243485, 287755, 292182, 333190, 345306, 486970, 499785, 575510, 633061, 730455, 863265, 999570, 1266122, 1460910, 1726530, 1899183, 3165305, 3798366, 6330610, 9495915, 18991830]

約数ペア:

[(1, 18991830), (2, 9495915), (3, 6330610), (5, 3798366), (6, 3165305), (10, 1899183), (11, 1726530), (13, 1460910), (15, 1266122), (19, 999570), (22, 863265), (26, 730455), (30, 633061), (33, 575510), (38, 499785), (39, 486970), (55, 345306), (57, 333190), (65, 292182), (66, 287755), (78, 243485), (95, 199914), (110, 172653), (114, 166595), (130, 146091), (143, 132810), (165, 115102), (190, 99957), (195, 97394), (209, 90870), (233, 81510), (247, 76890), (285, 66638), (286, 66405), (330, 57551), (390, 48697), (418, 45435), (429, 44270), (466, 40755), (494, 38445), (570, 33319), (627, 30290), (699, 27170), (715, 26562), (741, 25630), (858, 22135), (1045, 18174), (1165, 16302), (1235, 15378), (1254, 15145), (1398, 13585), (1430, 13281), (1482, 12815), (2090, 9087), (2145, 8854), (2330, 8151), (2470, 7689), (2563, 7410), (2717, 6990), (3029, 6270), (3135, 6058), (3495, 5434), (3705, 5126), (4290, 4427)]