420235280

素因数分解:

$2^4\times 5^1\times {\mathrm{1471}}^1\times {\mathrm{3571}}^1$

素因数の和:5055

約数の個数: 40

約数和(自身を含む): 977985024

約数和(自身を除く): 557749744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1471, 2942, 3571, 5884, 7142, 7355, 11768, 14284, 14710, 17855, 23536, 28568, 29420, 35710, 57136, 58840, 71420, 117680, 142840, 285680, 5252941, 10505882, 21011764, 26264705, 42023528, 52529410, 84047056, 105058820, 210117640, 420235280]

約数ペア:

[(1, 420235280), (2, 210117640), (4, 105058820), (5, 84047056), (8, 52529410), (10, 42023528), (16, 26264705), (20, 21011764), (40, 10505882), (80, 5252941), (1471, 285680), (2942, 142840), (3571, 117680), (5884, 71420), (7142, 58840), (7355, 57136), (11768, 35710), (14284, 29420), (14710, 28568), (17855, 23536)]