2878472440

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{910909}}^1$

素因数の和:910999

約数の個数: 32

約数和(自身を含む): 6558552000

約数和(自身を除く): 3680079560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 910909, 1821818, 3643636, 4554545, 7287272, 9109090, 18218180, 36436360, 71961811, 143923622, 287847244, 359809055, 575694488, 719618110, 1439236220, 2878472440]

約数ペア:

[(1, 2878472440), (2, 1439236220), (4, 719618110), (5, 575694488), (8, 359809055), (10, 287847244), (20, 143923622), (40, 71961811), (79, 36436360), (158, 18218180), (316, 9109090), (395, 7287272), (632, 4554545), (790, 3643636), (1580, 1821818), (3160, 910909)]