20531056

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{239}}^1$

素因数の和:326

約数の個数: 80

約数和(自身を含む): 49996800

約数和(自身を除く): 29465744

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 59, 91, 104, 112, 118, 182, 208, 236, 239, 364, 413, 472, 478, 728, 767, 826, 944, 956, 1456, 1534, 1652, 1673, 1912, 3068, 3107, 3304, 3346, 3824, 5369, 6136, 6214, 6608, 6692, 10738, 12272, 12428, 13384, 14101, 21476, 21749, 24856, 26768, 28202, 42952, 43498, 49712, 56404, 85904, 86996, 98707, 112808, 173992, 183313, 197414, 225616, 347984, 366626, 394828, 733252, 789656, 1283191, 1466504, 1579312, 2566382, 2933008, 5132764, 10265528, 20531056]

約数ペア:

[(1, 20531056), (2, 10265528), (4, 5132764), (7, 2933008), (8, 2566382), (13, 1579312), (14, 1466504), (16, 1283191), (26, 789656), (28, 733252), (52, 394828), (56, 366626), (59, 347984), (91, 225616), (104, 197414), (112, 183313), (118, 173992), (182, 112808), (208, 98707), (236, 86996), (239, 85904), (364, 56404), (413, 49712), (472, 43498), (478, 42952), (728, 28202), (767, 26768), (826, 24856), (944, 21749), (956, 21476), (1456, 14101), (1534, 13384), (1652, 12428), (1673, 12272), (1912, 10738), (3068, 6692), (3107, 6608), (3304, 6214), (3346, 6136), (3824, 5369)]