72385640

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{277}}^1$

素因数の和:474

約数の個数: 64

約数和(自身を含む): 168134400

約数和(自身を除く): 95748760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 139, 188, 235, 277, 278, 376, 470, 554, 556, 695, 940, 1108, 1112, 1385, 1390, 1880, 2216, 2770, 2780, 5540, 5560, 6533, 11080, 13019, 13066, 26038, 26132, 32665, 38503, 52076, 52264, 65095, 65330, 77006, 104152, 130190, 130660, 154012, 192515, 260380, 261320, 308024, 385030, 520760, 770060, 1540120, 1809641, 3619282, 7238564, 9048205, 14477128, 18096410, 36192820, 72385640]

約数ペア:

[(1, 72385640), (2, 36192820), (4, 18096410), (5, 14477128), (8, 9048205), (10, 7238564), (20, 3619282), (40, 1809641), (47, 1540120), (94, 770060), (139, 520760), (188, 385030), (235, 308024), (277, 261320), (278, 260380), (376, 192515), (470, 154012), (554, 130660), (556, 130190), (695, 104152), (940, 77006), (1108, 65330), (1112, 65095), (1385, 52264), (1390, 52076), (1880, 38503), (2216, 32665), (2770, 26132), (2780, 26038), (5540, 13066), (5560, 13019), (6533, 11080)]