1285875984980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{940229}}^1$

素因数の和:940377

約数の個数: 96

約数和(自身を含む): 2938030704000

約数和(自身を除く): 1652154719020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 59, 61, 76, 95, 118, 122, 190, 236, 244, 295, 305, 380, 590, 610, 1121, 1159, 1180, 1220, 2242, 2318, 3599, 4484, 4636, 5605, 5795, 7198, 11210, 11590, 14396, 17995, 22420, 23180, 35990, 68381, 71980, 136762, 273524, 341905, 683810, 940229, 1367620, 1880458, 3760916, 4701145, 9402290, 17864351, 18804580, 35728702, 55473511, 57353969, 71457404, 89321755, 110947022, 114707938, 178643510, 221894044, 229415876, 277367555, 286769845, 357287020, 554735110, 573539690, 1053996709, 1089725411, 1109470220, 1147079380, 2107993418, 2179450822, 3383884171, 4215986836, 4358901644, 5269983545, 5448627055, 6767768342, 10539967090, 10897254110, 13535536684, 16919420855, 21079934180, 21794508220, 33838841710, 64293799249, 67677683420, 128587598498, 257175196996, 321468996245, 642937992490, 1285875984980]

約数ペア:

[(1, 1285875984980), (2, 642937992490), (4, 321468996245), (5, 257175196996), (10, 128587598498), (19, 67677683420), (20, 64293799249), (38, 33838841710), (59, 21794508220), (61, 21079934180), (76, 16919420855), (95, 13535536684), (118, 10897254110), (122, 10539967090), (190, 6767768342), (236, 5448627055), (244, 5269983545), (295, 4358901644), (305, 4215986836), (380, 3383884171), (590, 2179450822), (610, 2107993418), (1121, 1147079380), (1159, 1109470220), (1180, 1089725411), (1220, 1053996709), (2242, 573539690), (2318, 554735110), (3599, 357287020), (4484, 286769845), (4636, 277367555), (5605, 229415876), (5795, 221894044), (7198, 178643510), (11210, 114707938), (11590, 110947022), (14396, 89321755), (17995, 71457404), (22420, 57353969), (23180, 55473511), (35990, 35728702), (68381, 18804580), (71980, 17864351), (136762, 9402290), (273524, 4701145), (341905, 3760916), (683810, 1880458), (940229, 1367620)]