19305710

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:225

約数の個数: 64

約数和(自身を含む): 39916800

約数和(自身を除く): 20611090

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 43, 85, 86, 95, 139, 170, 190, 215, 278, 323, 430, 646, 695, 731, 817, 1390, 1462, 1615, 1634, 2363, 2641, 3230, 3655, 4085, 4726, 5282, 5977, 7310, 8170, 11815, 11954, 13205, 13889, 23630, 26410, 27778, 29885, 44897, 59770, 69445, 89794, 101609, 113563, 138890, 203218, 224485, 227126, 448970, 508045, 567815, 1016090, 1135630, 1930571, 3861142, 9652855, 19305710]

約数ペア:

[(1, 19305710), (2, 9652855), (5, 3861142), (10, 1930571), (17, 1135630), (19, 1016090), (34, 567815), (38, 508045), (43, 448970), (85, 227126), (86, 224485), (95, 203218), (139, 138890), (170, 113563), (190, 101609), (215, 89794), (278, 69445), (323, 59770), (430, 44897), (646, 29885), (695, 27778), (731, 26410), (817, 23630), (1390, 13889), (1462, 13205), (1615, 11954), (1634, 11815), (2363, 8170), (2641, 7310), (3230, 5977), (3655, 5282), (4085, 4726)]