30890720

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{27581}}^1$

素因数の和:27603

約数の個数: 48

約数和(自身を含む): 83407968

約数和(自身を除く): 52517248

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 27581, 55162, 110324, 137905, 193067, 220648, 275810, 386134, 441296, 551620, 772268, 882592, 965335, 1103240, 1544536, 1930670, 2206480, 3089072, 3861340, 4412960, 6178144, 7722680, 15445360, 30890720]

約数ペア:

[(1, 30890720), (2, 15445360), (4, 7722680), (5, 6178144), (7, 4412960), (8, 3861340), (10, 3089072), (14, 2206480), (16, 1930670), (20, 1544536), (28, 1103240), (32, 965335), (35, 882592), (40, 772268), (56, 551620), (70, 441296), (80, 386134), (112, 275810), (140, 220648), (160, 193067), (224, 137905), (280, 110324), (560, 55162), (1120, 27581)]