439238420

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{277999}}^1$

素因数の和:278087

約数の個数: 24

約数和(自身を含む): 934080000

約数和(自身を除く): 494841580

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 277999, 555998, 1111996, 1389995, 2779990, 5559980, 21961921, 43923842, 87847684, 109809605, 219619210, 439238420]

約数ペア:

[(1, 439238420), (2, 219619210), (4, 109809605), (5, 87847684), (10, 43923842), (20, 21961921), (79, 5559980), (158, 2779990), (316, 1389995), (395, 1111996), (790, 555998), (1580, 277999)]