30143920

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{8017}}^1$

素因数の和:8077

約数の個数: 40

約数和(自身を含む): 71584704

約数和(自身を除く): 41440784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 8017, 16034, 32068, 40085, 64136, 80170, 128272, 160340, 320680, 376799, 641360, 753598, 1507196, 1883995, 3014392, 3767990, 6028784, 7535980, 15071960, 30143920]

約数ペア:

[(1, 30143920), (2, 15071960), (4, 7535980), (5, 6028784), (8, 3767990), (10, 3014392), (16, 1883995), (20, 1507196), (40, 753598), (47, 641360), (80, 376799), (94, 320680), (188, 160340), (235, 128272), (376, 80170), (470, 64136), (752, 40085), (940, 32068), (1880, 16034), (3760, 8017)]