19596940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{281}}^1\times {\mathrm{317}}^1$

素因数の和:618

約数の個数: 48

約数和(自身を含む): 45196704

約数和(自身を除く): 25599764

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 281, 317, 562, 634, 1124, 1268, 1405, 1585, 2810, 3091, 3170, 3487, 5620, 6182, 6340, 6974, 12364, 13948, 15455, 17435, 30910, 34870, 61820, 69740, 89077, 178154, 356308, 445385, 890770, 979847, 1781540, 1959694, 3919388, 4899235, 9798470, 19596940]

約数ペア:

[(1, 19596940), (2, 9798470), (4, 4899235), (5, 3919388), (10, 1959694), (11, 1781540), (20, 979847), (22, 890770), (44, 445385), (55, 356308), (110, 178154), (220, 89077), (281, 69740), (317, 61820), (562, 34870), (634, 30910), (1124, 17435), (1268, 15455), (1405, 13948), (1585, 12364), (2810, 6974), (3091, 6340), (3170, 6182), (3487, 5620)]