30489620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{2447}}^1$

素因数の和:2552

約数の個数: 48

約数和(自身を含む): 74027520

約数和(自身を除く): 43537900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 623, 890, 1246, 1780, 2447, 2492, 3115, 4894, 6230, 9788, 12235, 12460, 17129, 24470, 34258, 48940, 68516, 85645, 171290, 217783, 342580, 435566, 871132, 1088915, 1524481, 2177830, 3048962, 4355660, 6097924, 7622405, 15244810, 30489620]

約数ペア:

[(1, 30489620), (2, 15244810), (4, 7622405), (5, 6097924), (7, 4355660), (10, 3048962), (14, 2177830), (20, 1524481), (28, 1088915), (35, 871132), (70, 435566), (89, 342580), (140, 217783), (178, 171290), (356, 85645), (445, 68516), (623, 48940), (890, 34258), (1246, 24470), (1780, 17129), (2447, 12460), (2492, 12235), (3115, 9788), (4894, 6230)]