61891240

素因数分解:

$2^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{8017}}^1$

素因数の和:8221

約数の個数: 32

約数和(自身を含む): 139994280

約数和(自身を除く): 78103040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 193, 386, 772, 965, 1544, 1930, 3860, 7720, 8017, 16034, 32068, 40085, 64136, 80170, 160340, 320680, 1547281, 3094562, 6189124, 7736405, 12378248, 15472810, 30945620, 61891240]

約数ペア:

[(1, 61891240), (2, 30945620), (4, 15472810), (5, 12378248), (8, 7736405), (10, 6189124), (20, 3094562), (40, 1547281), (193, 320680), (386, 160340), (772, 80170), (965, 64136), (1544, 40085), (1930, 32068), (3860, 16034), (7720, 8017)]