251456004

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{1621}}^1$

素因数の和:1801

約数の個数: 72

約数和(自身を含む): 661256960

約数和(自身を除く): 409800956

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 124, 139, 186, 278, 279, 372, 417, 556, 558, 834, 1116, 1251, 1621, 1668, 2502, 3242, 4309, 4863, 5004, 6484, 8618, 9726, 12927, 14589, 17236, 19452, 25854, 29178, 38781, 50251, 51708, 58356, 77562, 100502, 150753, 155124, 201004, 225319, 301506, 450638, 452259, 603012, 675957, 901276, 904518, 1351914, 1809036, 2027871, 2703828, 4055742, 6984889, 8111484, 13969778, 20954667, 27939556, 41909334, 62864001, 83818668, 125728002, 251456004]

約数ペア:

[(1, 251456004), (2, 125728002), (3, 83818668), (4, 62864001), (6, 41909334), (9, 27939556), (12, 20954667), (18, 13969778), (31, 8111484), (36, 6984889), (62, 4055742), (93, 2703828), (124, 2027871), (139, 1809036), (186, 1351914), (278, 904518), (279, 901276), (372, 675957), (417, 603012), (556, 452259), (558, 450638), (834, 301506), (1116, 225319), (1251, 201004), (1621, 155124), (1668, 150753), (2502, 100502), (3242, 77562), (4309, 58356), (4863, 51708), (5004, 50251), (6484, 38781), (8618, 29178), (9726, 25854), (12927, 19452), (14589, 17236)]