20968850

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{331}}^1$

素因数の和:531

約数の個数: 48

約数和(自身を含む): 44955456

約数和(自身を除く): 23986606

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 175, 181, 331, 350, 362, 662, 905, 1267, 1655, 1810, 2317, 2534, 3310, 4525, 4634, 6335, 8275, 9050, 11585, 12670, 16550, 23170, 31675, 57925, 59911, 63350, 115850, 119822, 299555, 419377, 599110, 838754, 1497775, 2096885, 2995550, 4193770, 10484425, 20968850]

約数ペア:

[(1, 20968850), (2, 10484425), (5, 4193770), (7, 2995550), (10, 2096885), (14, 1497775), (25, 838754), (35, 599110), (50, 419377), (70, 299555), (175, 119822), (181, 115850), (331, 63350), (350, 59911), (362, 57925), (662, 31675), (905, 23170), (1267, 16550), (1655, 12670), (1810, 11585), (2317, 9050), (2534, 8275), (3310, 6335), (4525, 4634)]