208807620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{71023}}^1$

素因数の和:71049

約数の個数: 72

約数和(自身を含む): 680125824

約数和(自身を除く): 471318204

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 71023, 142046, 213069, 284092, 355115, 426138, 497161, 710230, 852276, 994322, 1065345, 1420460, 1491483, 1988644, 2130690, 2485805, 2982966, 3480127, 4261380, 4971610, 5965932, 6960254, 7457415, 9943220, 10440381, 13920508, 14914830, 17400635, 20880762, 29829660, 34801270, 41761524, 52201905, 69602540, 104403810, 208807620]

約数ペア:

[(1, 208807620), (2, 104403810), (3, 69602540), (4, 52201905), (5, 41761524), (6, 34801270), (7, 29829660), (10, 20880762), (12, 17400635), (14, 14914830), (15, 13920508), (20, 10440381), (21, 9943220), (28, 7457415), (30, 6960254), (35, 5965932), (42, 4971610), (49, 4261380), (60, 3480127), (70, 2982966), (84, 2485805), (98, 2130690), (105, 1988644), (140, 1491483), (147, 1420460), (196, 1065345), (210, 994322), (245, 852276), (294, 710230), (420, 497161), (490, 426138), (588, 355115), (735, 284092), (980, 213069), (1470, 142046), (2940, 71023)]