20207928

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{271}}^1$

素因数の和:532

約数の個数: 64

約数和(自身を含む): 54835200

約数和(自身を除く): 34627272

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 239, 271, 312, 478, 542, 717, 813, 956, 1084, 1434, 1626, 1912, 2168, 2868, 3107, 3252, 3523, 5736, 6214, 6504, 7046, 9321, 10569, 12428, 14092, 18642, 21138, 24856, 28184, 37284, 42276, 64769, 74568, 84552, 129538, 194307, 259076, 388614, 518152, 777228, 841997, 1554456, 1683994, 2525991, 3367988, 5051982, 6735976, 10103964, 20207928]

約数ペア:

[(1, 20207928), (2, 10103964), (3, 6735976), (4, 5051982), (6, 3367988), (8, 2525991), (12, 1683994), (13, 1554456), (24, 841997), (26, 777228), (39, 518152), (52, 388614), (78, 259076), (104, 194307), (156, 129538), (239, 84552), (271, 74568), (312, 64769), (478, 42276), (542, 37284), (717, 28184), (813, 24856), (956, 21138), (1084, 18642), (1434, 14092), (1626, 12428), (1912, 10569), (2168, 9321), (2868, 7046), (3107, 6504), (3252, 6214), (3523, 5736)]