1978811848

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{887}}^1\times {\mathrm{1129}}^1$

素因数の和:2054

約数の個数: 64

約数和(自身を含む): 4214448000

約数和(自身を除く): 2235636152

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 887, 988, 1129, 1774, 1976, 2258, 3548, 4516, 7096, 9032, 11531, 14677, 16853, 21451, 23062, 29354, 33706, 42902, 46124, 58708, 67412, 85804, 92248, 117416, 134824, 171608, 219089, 278863, 438178, 557726, 876356, 1001423, 1115452, 1752712, 2002846, 2230904, 4005692, 8011384, 13018499, 19027037, 26036998, 38054074, 52073996, 76108148, 104147992, 152216296, 247351481, 494702962, 989405924, 1978811848]

約数ペア:

[(1, 1978811848), (2, 989405924), (4, 494702962), (8, 247351481), (13, 152216296), (19, 104147992), (26, 76108148), (38, 52073996), (52, 38054074), (76, 26036998), (104, 19027037), (152, 13018499), (247, 8011384), (494, 4005692), (887, 2230904), (988, 2002846), (1129, 1752712), (1774, 1115452), (1976, 1001423), (2258, 876356), (3548, 557726), (4516, 438178), (7096, 278863), (9032, 219089), (11531, 171608), (14677, 134824), (16853, 117416), (21451, 92248), (23062, 85804), (29354, 67412), (33706, 58708), (42902, 46124)]