2021695180

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^2\times {\mathrm{71}}^1\times {\mathrm{409}}^1$

素因数の和:607

約数の個数: 72

約数和(自身を含む): 4390273440

約数和(自身を除く): 2368578260

約数列:

[1, 2, 4, 5, 10, 20, 59, 71, 118, 142, 236, 284, 295, 355, 409, 590, 710, 818, 1180, 1420, 1636, 2045, 3481, 4090, 4189, 6962, 8180, 8378, 13924, 16756, 17405, 20945, 24131, 29039, 34810, 41890, 48262, 58078, 69620, 83780, 96524, 116156, 120655, 145195, 241310, 247151, 290390, 482620, 494302, 580780, 988604, 1235755, 1423729, 1713301, 2471510, 2847458, 3426602, 4943020, 5694916, 6853204, 7118645, 8566505, 14237290, 17133010, 28474580, 34266020, 101084759, 202169518, 404339036, 505423795, 1010847590, 2021695180]

約数ペア:

[(1, 2021695180), (2, 1010847590), (4, 505423795), (5, 404339036), (10, 202169518), (20, 101084759), (59, 34266020), (71, 28474580), (118, 17133010), (142, 14237290), (236, 8566505), (284, 7118645), (295, 6853204), (355, 5694916), (409, 4943020), (590, 3426602), (710, 2847458), (818, 2471510), (1180, 1713301), (1420, 1423729), (1636, 1235755), (2045, 988604), (3481, 580780), (4090, 494302), (4189, 482620), (6962, 290390), (8180, 247151), (8378, 241310), (13924, 145195), (16756, 120655), (17405, 116156), (20945, 96524), (24131, 83780), (29039, 69620), (34810, 58078), (41890, 48262)]