172944920

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{27539}}^1$

素因数の和:27707

約数の個数: 32

約数和(自身を含む): 391618800

約数和(自身を除く): 218673880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 27539, 55078, 110156, 137695, 220312, 275390, 550780, 1101560, 4323623, 8647246, 17294492, 21618115, 34588984, 43236230, 86472460, 172944920]

約数ペア:

[(1, 172944920), (2, 86472460), (4, 43236230), (5, 34588984), (8, 21618115), (10, 17294492), (20, 8647246), (40, 4323623), (157, 1101560), (314, 550780), (628, 275390), (785, 220312), (1256, 137695), (1570, 110156), (3140, 55078), (6280, 27539)]