21202240

素因数分解:

$2^6\times 5^1\times {\mathrm{59}}^1\times {\mathrm{1123}}^1$

素因数の和:1199

約数の個数: 56

約数和(自身を含む): 51389280

約数和(自身を除く): 30187040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 59, 64, 80, 118, 160, 236, 295, 320, 472, 590, 944, 1123, 1180, 1888, 2246, 2360, 3776, 4492, 4720, 5615, 8984, 9440, 11230, 17968, 18880, 22460, 35936, 44920, 66257, 71872, 89840, 132514, 179680, 265028, 331285, 359360, 530056, 662570, 1060112, 1325140, 2120224, 2650280, 4240448, 5300560, 10601120, 21202240]

約数ペア:

[(1, 21202240), (2, 10601120), (4, 5300560), (5, 4240448), (8, 2650280), (10, 2120224), (16, 1325140), (20, 1060112), (32, 662570), (40, 530056), (59, 359360), (64, 331285), (80, 265028), (118, 179680), (160, 132514), (236, 89840), (295, 71872), (320, 66257), (472, 44920), (590, 35936), (944, 22460), (1123, 18880), (1180, 17968), (1888, 11230), (2246, 9440), (2360, 8984), (3776, 5615), (4492, 4720)]