18933680

素因数分解:

$2^4\times 5^1\times {\mathrm{311}}^1\times {\mathrm{761}}^1$

素因数の和:1085

約数の個数: 40

約数和(自身を含む): 44220384

約数和(自身を除く): 25286704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 311, 622, 761, 1244, 1522, 1555, 2488, 3044, 3110, 3805, 4976, 6088, 6220, 7610, 12176, 12440, 15220, 24880, 30440, 60880, 236671, 473342, 946684, 1183355, 1893368, 2366710, 3786736, 4733420, 9466840, 18933680]

約数ペア:

[(1, 18933680), (2, 9466840), (4, 4733420), (5, 3786736), (8, 2366710), (10, 1893368), (16, 1183355), (20, 946684), (40, 473342), (80, 236671), (311, 60880), (622, 30440), (761, 24880), (1244, 15220), (1522, 12440), (1555, 12176), (2488, 7610), (3044, 6220), (3110, 6088), (3805, 4976)]