661221444

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{1873}}^1$

素因数の和:1997

約数の個数: 96

約数和(自身を含む): 1739551744

約数和(自身を除く): 1078330300

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 52, 62, 73, 78, 93, 124, 146, 156, 186, 219, 292, 372, 403, 438, 806, 876, 949, 1209, 1612, 1873, 1898, 2263, 2418, 2847, 3746, 3796, 4526, 4836, 5619, 5694, 6789, 7492, 9052, 11238, 11388, 13578, 22476, 24349, 27156, 29419, 48698, 58063, 58838, 73047, 88257, 97396, 116126, 117676, 136729, 146094, 174189, 176514, 232252, 273458, 292188, 348378, 353028, 410187, 546916, 696756, 754819, 820374, 1509638, 1640748, 1777477, 2264457, 3019276, 3554954, 4238599, 4528914, 5332431, 7109908, 8477198, 9057828, 10664862, 12715797, 16954396, 21329724, 25431594, 50863188, 55101787, 110203574, 165305361, 220407148, 330610722, 661221444]

約数ペア:

[(1, 661221444), (2, 330610722), (3, 220407148), (4, 165305361), (6, 110203574), (12, 55101787), (13, 50863188), (26, 25431594), (31, 21329724), (39, 16954396), (52, 12715797), (62, 10664862), (73, 9057828), (78, 8477198), (93, 7109908), (124, 5332431), (146, 4528914), (156, 4238599), (186, 3554954), (219, 3019276), (292, 2264457), (372, 1777477), (403, 1640748), (438, 1509638), (806, 820374), (876, 754819), (949, 696756), (1209, 546916), (1612, 410187), (1873, 353028), (1898, 348378), (2263, 292188), (2418, 273458), (2847, 232252), (3746, 176514), (3796, 174189), (4526, 146094), (4836, 136729), (5619, 117676), (5694, 116126), (6789, 97396), (7492, 88257), (9052, 73047), (11238, 58838), (11388, 58063), (13578, 48698), (22476, 29419), (24349, 27156)]