123268240

素因数分解:

$2^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{8513}}^1$

素因数の和:8707

約数の個数: 40

約数和(自身を含む): 288215928

約数和(自身を除く): 164947688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 181, 362, 724, 905, 1448, 1810, 2896, 3620, 7240, 8513, 14480, 17026, 34052, 42565, 68104, 85130, 136208, 170260, 340520, 681040, 1540853, 3081706, 6163412, 7704265, 12326824, 15408530, 24653648, 30817060, 61634120, 123268240]

約数ペア:

[(1, 123268240), (2, 61634120), (4, 30817060), (5, 24653648), (8, 15408530), (10, 12326824), (16, 7704265), (20, 6163412), (40, 3081706), (80, 1540853), (181, 681040), (362, 340520), (724, 170260), (905, 136208), (1448, 85130), (1810, 68104), (2896, 42565), (3620, 34052), (7240, 17026), (8513, 14480)]