20128291240

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{401}}^1\times {\mathrm{23677}}^1$

素因数の和:24142

約数の個数: 64

約数和(自身を含む): 46260182160

約数和(自身を除く): 26131890920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 401, 424, 530, 802, 1060, 1604, 2005, 2120, 3208, 4010, 8020, 16040, 21253, 23677, 42506, 47354, 85012, 94708, 106265, 118385, 170024, 189416, 212530, 236770, 425060, 473540, 850120, 947080, 1254881, 2509762, 5019524, 6274405, 9494477, 10039048, 12548810, 18988954, 25097620, 37977908, 47472385, 50195240, 75955816, 94944770, 189889540, 379779080, 503207281, 1006414562, 2012829124, 2516036405, 4025658248, 5032072810, 10064145620, 20128291240]

約数ペア:

[(1, 20128291240), (2, 10064145620), (4, 5032072810), (5, 4025658248), (8, 2516036405), (10, 2012829124), (20, 1006414562), (40, 503207281), (53, 379779080), (106, 189889540), (212, 94944770), (265, 75955816), (401, 50195240), (424, 47472385), (530, 37977908), (802, 25097620), (1060, 18988954), (1604, 12548810), (2005, 10039048), (2120, 9494477), (3208, 6274405), (4010, 5019524), (8020, 2509762), (16040, 1254881), (21253, 947080), (23677, 850120), (42506, 473540), (47354, 425060), (85012, 236770), (94708, 212530), (106265, 189416), (118385, 170024)]