19634780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2879}}^1$

素因数の和:2930

約数の個数: 48

約数和(自身を含む): 46448640

約数和(自身を除く): 26813860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 2879, 3410, 5758, 6820, 11516, 14395, 28790, 31669, 57580, 63338, 89249, 126676, 158345, 178498, 316690, 356996, 446245, 633380, 892490, 981739, 1784980, 1963478, 3926956, 4908695, 9817390, 19634780]

約数ペア:

[(1, 19634780), (2, 9817390), (4, 4908695), (5, 3926956), (10, 1963478), (11, 1784980), (20, 981739), (22, 892490), (31, 633380), (44, 446245), (55, 356996), (62, 316690), (110, 178498), (124, 158345), (155, 126676), (220, 89249), (310, 63338), (341, 57580), (620, 31669), (682, 28790), (1364, 14395), (1705, 11516), (2879, 6820), (3410, 5758)]