18974660

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{151}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 41164032

約数和(自身を除く): 22189372

約数列:

[1, 2, 4, 5, 10, 20, 61, 103, 122, 151, 206, 244, 302, 305, 412, 515, 604, 610, 755, 1030, 1220, 1510, 2060, 3020, 6283, 9211, 12566, 15553, 18422, 25132, 31106, 31415, 36844, 46055, 62212, 62830, 77765, 92110, 125660, 155530, 184220, 311060, 948733, 1897466, 3794932, 4743665, 9487330, 18974660]

約数ペア:

[(1, 18974660), (2, 9487330), (4, 4743665), (5, 3794932), (10, 1897466), (20, 948733), (61, 311060), (103, 184220), (122, 155530), (151, 125660), (206, 92110), (244, 77765), (302, 62830), (305, 62212), (412, 46055), (515, 36844), (604, 31415), (610, 31106), (755, 25132), (1030, 18422), (1220, 15553), (1510, 12566), (2060, 9211), (3020, 6283)]