40507720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2141}}^1$

素因数の和:2206

約数の個数: 64

約数和(自身を含む): 101787840

約数和(自身を除く): 61280120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 172, 215, 220, 344, 430, 440, 473, 860, 946, 1720, 1892, 2141, 2365, 3784, 4282, 4730, 8564, 9460, 10705, 17128, 18920, 21410, 23551, 42820, 47102, 85640, 92063, 94204, 117755, 184126, 188408, 235510, 368252, 460315, 471020, 736504, 920630, 942040, 1012693, 1841260, 2025386, 3682520, 4050772, 5063465, 8101544, 10126930, 20253860, 40507720]

約数ペア:

[(1, 40507720), (2, 20253860), (4, 10126930), (5, 8101544), (8, 5063465), (10, 4050772), (11, 3682520), (20, 2025386), (22, 1841260), (40, 1012693), (43, 942040), (44, 920630), (55, 736504), (86, 471020), (88, 460315), (110, 368252), (172, 235510), (215, 188408), (220, 184126), (344, 117755), (430, 94204), (440, 92063), (473, 85640), (860, 47102), (946, 42820), (1720, 23551), (1892, 21410), (2141, 18920), (2365, 17128), (3784, 10705), (4282, 9460), (4730, 8564)]