20498280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{293}}^1$

素因数の和:371

約数の個数: 128

約数和(自身を含む): 68584320

約数和(自身を除く): 48086040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 53, 55, 60, 66, 88, 106, 110, 120, 132, 159, 165, 212, 220, 264, 265, 293, 318, 330, 424, 440, 530, 583, 586, 636, 660, 795, 879, 1060, 1166, 1172, 1272, 1320, 1465, 1590, 1749, 1758, 2120, 2332, 2344, 2915, 2930, 3180, 3223, 3498, 3516, 4395, 4664, 5830, 5860, 6360, 6446, 6996, 7032, 8745, 8790, 9669, 11660, 11720, 12892, 13992, 15529, 16115, 17490, 17580, 19338, 23320, 25784, 31058, 32230, 34980, 35160, 38676, 46587, 48345, 62116, 64460, 69960, 77352, 77645, 93174, 96690, 124232, 128920, 155290, 170819, 186348, 193380, 232935, 310580, 341638, 372696, 386760, 465870, 512457, 621160, 683276, 854095, 931740, 1024914, 1366552, 1708190, 1863480, 2049828, 2562285, 3416380, 4099656, 5124570, 6832760, 10249140, 20498280]

約数ペア:

[(1, 20498280), (2, 10249140), (3, 6832760), (4, 5124570), (5, 4099656), (6, 3416380), (8, 2562285), (10, 2049828), (11, 1863480), (12, 1708190), (15, 1366552), (20, 1024914), (22, 931740), (24, 854095), (30, 683276), (33, 621160), (40, 512457), (44, 465870), (53, 386760), (55, 372696), (60, 341638), (66, 310580), (88, 232935), (106, 193380), (110, 186348), (120, 170819), (132, 155290), (159, 128920), (165, 124232), (212, 96690), (220, 93174), (264, 77645), (265, 77352), (293, 69960), (318, 64460), (330, 62116), (424, 48345), (440, 46587), (530, 38676), (583, 35160), (586, 34980), (636, 32230), (660, 31058), (795, 25784), (879, 23320), (1060, 19338), (1166, 17580), (1172, 17490), (1272, 16115), (1320, 15529), (1465, 13992), (1590, 12892), (1749, 11720), (1758, 11660), (2120, 9669), (2332, 8790), (2344, 8745), (2915, 7032), (2930, 6996), (3180, 6446), (3223, 6360), (3498, 5860), (3516, 5830), (4395, 4664)]