18611780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2729}}^1$

素因数の和:2780

約数の個数: 48

約数和(自身を含む): 44029440

約数和(自身を除く): 25417660

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, 2729, 3410, 5458, 6820, 10916, 13645, 27290, 30019, 54580, 60038, 84599, 120076, 150095, 169198, 300190, 338396, 422995, 600380, 845990, 930589, 1691980, 1861178, 3722356, 4652945, 9305890, 18611780]

約数ペア:

[(1, 18611780), (2, 9305890), (4, 4652945), (5, 3722356), (10, 1861178), (11, 1691980), (20, 930589), (22, 845990), (31, 600380), (44, 422995), (55, 338396), (62, 300190), (110, 169198), (124, 150095), (155, 120076), (220, 84599), (310, 60038), (341, 54580), (620, 30019), (682, 27290), (1364, 13645), (1705, 10916), (2729, 6820), (3410, 5458)]