201121518

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:481

約数の個数: 64

約数和(自身を含む): 443842560

約数和(自身を除く): 242721042

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 79, 127, 158, 237, 254, 257, 381, 474, 514, 762, 771, 1027, 1542, 1651, 2054, 3081, 3302, 3341, 4953, 6162, 6682, 9906, 10023, 10033, 20046, 20066, 20303, 30099, 32639, 40606, 60198, 60909, 65278, 97917, 121818, 130429, 195834, 260858, 263939, 391287, 424307, 527878, 782574, 791817, 848614, 1272921, 1583634, 2545842, 2578481, 5156962, 7735443, 15470886, 33520253, 67040506, 100560759, 201121518]

約数ペア:

[(1, 201121518), (2, 100560759), (3, 67040506), (6, 33520253), (13, 15470886), (26, 7735443), (39, 5156962), (78, 2578481), (79, 2545842), (127, 1583634), (158, 1272921), (237, 848614), (254, 791817), (257, 782574), (381, 527878), (474, 424307), (514, 391287), (762, 263939), (771, 260858), (1027, 195834), (1542, 130429), (1651, 121818), (2054, 97917), (3081, 65278), (3302, 60909), (3341, 60198), (4953, 40606), (6162, 32639), (6682, 30099), (9906, 20303), (10023, 20066), (10033, 20046)]