8381780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1229}}^1$

素因数の和:1280

約数の個数: 48

約数和(自身を含む): 19837440

約数和(自身を除く): 11455660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1229, 1364, 1705, 2458, 3410, 4916, 6145, 6820, 12290, 13519, 24580, 27038, 38099, 54076, 67595, 76198, 135190, 152396, 190495, 270380, 380990, 419089, 761980, 838178, 1676356, 2095445, 4190890, 8381780]

約数ペア:

[(1, 8381780), (2, 4190890), (4, 2095445), (5, 1676356), (10, 838178), (11, 761980), (20, 419089), (22, 380990), (31, 270380), (44, 190495), (55, 152396), (62, 135190), (110, 76198), (124, 67595), (155, 54076), (220, 38099), (310, 27038), (341, 24580), (620, 13519), (682, 12290), (1229, 6820), (1364, 6145), (1705, 4916), (2458, 3410)]