90212720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{86743}}^1$

素因数の和:86769

約数の個数: 40

約数和(自身を含む): 225881376

約数和(自身を除く): 135668656

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 86743, 173486, 346972, 433715, 693944, 867430, 1127659, 1387888, 1734860, 2255318, 3469720, 4510636, 5638295, 6939440, 9021272, 11276590, 18042544, 22553180, 45106360, 90212720]

約数ペア:

[(1, 90212720), (2, 45106360), (4, 22553180), (5, 18042544), (8, 11276590), (10, 9021272), (13, 6939440), (16, 5638295), (20, 4510636), (26, 3469720), (40, 2255318), (52, 1734860), (65, 1387888), (80, 1127659), (104, 867430), (130, 693944), (208, 433715), (260, 346972), (520, 173486), (1040, 86743)]