2789380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1$

素因数の和:460

約数の個数: 48

約数和(自身を含む): 6612480

約数和(自身を除く): 3823100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 409, 620, 682, 818, 1364, 1636, 1705, 2045, 3410, 4090, 4499, 6820, 8180, 8998, 12679, 17996, 22495, 25358, 44990, 50716, 63395, 89980, 126790, 139469, 253580, 278938, 557876, 697345, 1394690, 2789380]

約数ペア:

[(1, 2789380), (2, 1394690), (4, 697345), (5, 557876), (10, 278938), (11, 253580), (20, 139469), (22, 126790), (31, 89980), (44, 63395), (55, 50716), (62, 44990), (110, 25358), (124, 22495), (155, 17996), (220, 12679), (310, 8998), (341, 8180), (409, 6820), (620, 4499), (682, 4090), (818, 3410), (1364, 2045), (1636, 1705)]