221920010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{1039}}^1$

素因数の和:1143

約数の個数: 64

約数和(自身を含む): 452874240

約数和(自身を除く): 230954230

約数列:

[1, 2, 5, 10, 13, 26, 31, 53, 62, 65, 106, 130, 155, 265, 310, 403, 530, 689, 806, 1039, 1378, 1643, 2015, 2078, 3286, 3445, 4030, 5195, 6890, 8215, 10390, 13507, 16430, 21359, 27014, 32209, 42718, 55067, 64418, 67535, 106795, 110134, 135070, 161045, 213590, 275335, 322090, 418717, 550670, 715871, 837434, 1431742, 1707077, 2093585, 3414154, 3579355, 4187170, 7158710, 8535385, 17070770, 22192001, 44384002, 110960005, 221920010]

約数ペア:

[(1, 221920010), (2, 110960005), (5, 44384002), (10, 22192001), (13, 17070770), (26, 8535385), (31, 7158710), (53, 4187170), (62, 3579355), (65, 3414154), (106, 2093585), (130, 1707077), (155, 1431742), (265, 837434), (310, 715871), (403, 550670), (530, 418717), (689, 322090), (806, 275335), (1039, 213590), (1378, 161045), (1643, 135070), (2015, 110134), (2078, 106795), (3286, 67535), (3445, 64418), (4030, 55067), (5195, 42718), (6890, 32209), (8215, 27014), (10390, 21359), (13507, 16430)]