27991636

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^2$

素因数の和:272

約数の個数: 36

約数和(自身を含む): 53719680

約数和(自身を除く): 25728044

約数列:

[1, 2, 4, 19, 31, 38, 62, 76, 109, 124, 218, 436, 589, 1178, 2071, 2356, 3379, 4142, 6758, 8284, 11881, 13516, 23762, 47524, 64201, 128402, 225739, 256804, 368311, 451478, 736622, 902956, 1473244, 6997909, 13995818, 27991636]

約数ペア:

[(1, 27991636), (2, 13995818), (4, 6997909), (19, 1473244), (31, 902956), (38, 736622), (62, 451478), (76, 368311), (109, 256804), (124, 225739), (218, 128402), (436, 64201), (589, 47524), (1178, 23762), (2071, 13516), (2356, 11881), (3379, 8284), (4142, 6758)]