31609730

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:195

約数の個数: 64

約数和(自身を含む): 63296640

約数和(自身を除く): 31686910

約数列:

[1, 2, 5, 10, 19, 38, 43, 53, 73, 86, 95, 106, 146, 190, 215, 265, 365, 430, 530, 730, 817, 1007, 1387, 1634, 2014, 2279, 2774, 3139, 3869, 4085, 4558, 5035, 6278, 6935, 7738, 8170, 10070, 11395, 13870, 15695, 19345, 22790, 31390, 38690, 43301, 59641, 73511, 86602, 119282, 147022, 166367, 216505, 298205, 332734, 367555, 433010, 596410, 735110, 831835, 1663670, 3160973, 6321946, 15804865, 31609730]

約数ペア:

[(1, 31609730), (2, 15804865), (5, 6321946), (10, 3160973), (19, 1663670), (38, 831835), (43, 735110), (53, 596410), (73, 433010), (86, 367555), (95, 332734), (106, 298205), (146, 216505), (190, 166367), (215, 147022), (265, 119282), (365, 86602), (430, 73511), (530, 59641), (730, 43301), (817, 38690), (1007, 31390), (1387, 22790), (1634, 19345), (2014, 15695), (2279, 13870), (2774, 11395), (3139, 10070), (3869, 8170), (4085, 7738), (4558, 6935), (5035, 6278)]