19678180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1867}}^1$

素因数の和:1924

約数の個数: 48

約数和(自身を含む): 45190656

約数和(自身を除く): 25512476

約数列:

[1, 2, 4, 5, 10, 17, 20, 31, 34, 62, 68, 85, 124, 155, 170, 310, 340, 527, 620, 1054, 1867, 2108, 2635, 3734, 5270, 7468, 9335, 10540, 18670, 31739, 37340, 57877, 63478, 115754, 126956, 158695, 231508, 289385, 317390, 578770, 634780, 983909, 1157540, 1967818, 3935636, 4919545, 9839090, 19678180]

約数ペア:

[(1, 19678180), (2, 9839090), (4, 4919545), (5, 3935636), (10, 1967818), (17, 1157540), (20, 983909), (31, 634780), (34, 578770), (62, 317390), (68, 289385), (85, 231508), (124, 158695), (155, 126956), (170, 115754), (310, 63478), (340, 57877), (527, 37340), (620, 31739), (1054, 18670), (1867, 10540), (2108, 9335), (2635, 7468), (3734, 5270)]