20208375

素因数分解:

$3^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:126

約数の個数: 96

約数和(自身を含む): 42052608

約数和(自身を除く): 21844233

約数列:

[1, 3, 5, 9, 11, 15, 23, 25, 33, 45, 55, 69, 71, 75, 99, 115, 125, 165, 207, 213, 225, 253, 275, 345, 355, 375, 495, 575, 639, 759, 781, 825, 1035, 1065, 1125, 1265, 1375, 1633, 1725, 1775, 2277, 2343, 2475, 2875, 3195, 3795, 3905, 4125, 4899, 5175, 5325, 6325, 7029, 8165, 8625, 8875, 11385, 11715, 12375, 14697, 15975, 17963, 18975, 19525, 24495, 25875, 26625, 31625, 35145, 40825, 53889, 56925, 58575, 73485, 79875, 89815, 94875, 97625, 122475, 161667, 175725, 204125, 269445, 284625, 292875, 367425, 449075, 612375, 808335, 878625, 1347225, 1837125, 2245375, 4041675, 6736125, 20208375]

約数ペア:

[(1, 20208375), (3, 6736125), (5, 4041675), (9, 2245375), (11, 1837125), (15, 1347225), (23, 878625), (25, 808335), (33, 612375), (45, 449075), (55, 367425), (69, 292875), (71, 284625), (75, 269445), (99, 204125), (115, 175725), (125, 161667), (165, 122475), (207, 97625), (213, 94875), (225, 89815), (253, 79875), (275, 73485), (345, 58575), (355, 56925), (375, 53889), (495, 40825), (575, 35145), (639, 31625), (759, 26625), (781, 25875), (825, 24495), (1035, 19525), (1065, 18975), (1125, 17963), (1265, 15975), (1375, 14697), (1633, 12375), (1725, 11715), (1775, 11385), (2277, 8875), (2343, 8625), (2475, 8165), (2875, 7029), (3195, 6325), (3795, 5325), (3905, 5175), (4125, 4899)]