29670820

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1$

素因数の和:388

約数の個数: 48

約数和(自身を含む): 64108800

約数和(自身を除く): 34437980

約数列:

[1, 2, 4, 5, 10, 20, 79, 89, 158, 178, 211, 316, 356, 395, 422, 445, 790, 844, 890, 1055, 1580, 1780, 2110, 4220, 7031, 14062, 16669, 18779, 28124, 33338, 35155, 37558, 66676, 70310, 75116, 83345, 93895, 140620, 166690, 187790, 333380, 375580, 1483541, 2967082, 5934164, 7417705, 14835410, 29670820]

約数ペア:

[(1, 29670820), (2, 14835410), (4, 7417705), (5, 5934164), (10, 2967082), (20, 1483541), (79, 375580), (89, 333380), (158, 187790), (178, 166690), (211, 140620), (316, 93895), (356, 83345), (395, 75116), (422, 70310), (445, 66676), (790, 37558), (844, 35155), (890, 33338), (1055, 28124), (1580, 18779), (1780, 16669), (2110, 14062), (4220, 7031)]