920298040

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{14461}}^1$

素因数の和:14552

約数の個数: 64

約数和(自身を含む): 2176241760

約数和(自身を除く): 1255943720

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 43, 74, 86, 148, 172, 185, 215, 296, 344, 370, 430, 740, 860, 1480, 1591, 1720, 3182, 6364, 7955, 12728, 14461, 15910, 28922, 31820, 57844, 63640, 72305, 115688, 144610, 289220, 535057, 578440, 621823, 1070114, 1243646, 2140228, 2487292, 2675285, 3109115, 4280456, 4974584, 5350570, 6218230, 10701140, 12436460, 21402280, 23007451, 24872920, 46014902, 92029804, 115037255, 184059608, 230074510, 460149020, 920298040]

約数ペア:

[(1, 920298040), (2, 460149020), (4, 230074510), (5, 184059608), (8, 115037255), (10, 92029804), (20, 46014902), (37, 24872920), (40, 23007451), (43, 21402280), (74, 12436460), (86, 10701140), (148, 6218230), (172, 5350570), (185, 4974584), (215, 4280456), (296, 3109115), (344, 2675285), (370, 2487292), (430, 2140228), (740, 1243646), (860, 1070114), (1480, 621823), (1591, 578440), (1720, 535057), (3182, 289220), (6364, 144610), (7955, 115688), (12728, 72305), (14461, 63640), (15910, 57844), (28922, 31820)]