661856208

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{3943}}^1$

素因数の和:4236

約数の個数: 80

約数和(自身を含む): 1848631680

約数和(自身を除く): 1186775472

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 269, 312, 538, 624, 807, 1076, 1614, 2152, 3228, 3497, 3943, 4304, 6456, 6994, 7886, 10491, 11829, 12912, 13988, 15772, 20982, 23658, 27976, 31544, 41964, 47316, 51259, 55952, 63088, 83928, 94632, 102518, 153777, 167856, 189264, 205036, 307554, 410072, 615108, 820144, 1060667, 1230216, 2121334, 2460432, 3182001, 4242668, 6364002, 8485336, 12728004, 13788671, 16970672, 25456008, 27577342, 41366013, 50912016, 55154684, 82732026, 110309368, 165464052, 220618736, 330928104, 661856208]

約数ペア:

[(1, 661856208), (2, 330928104), (3, 220618736), (4, 165464052), (6, 110309368), (8, 82732026), (12, 55154684), (13, 50912016), (16, 41366013), (24, 27577342), (26, 25456008), (39, 16970672), (48, 13788671), (52, 12728004), (78, 8485336), (104, 6364002), (156, 4242668), (208, 3182001), (269, 2460432), (312, 2121334), (538, 1230216), (624, 1060667), (807, 820144), (1076, 615108), (1614, 410072), (2152, 307554), (3228, 205036), (3497, 189264), (3943, 167856), (4304, 153777), (6456, 102518), (6994, 94632), (7886, 83928), (10491, 63088), (11829, 55952), (12912, 51259), (13988, 47316), (15772, 41964), (20982, 31544), (23658, 27976)]