18676060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{659}}^1$

素因数の和:790

約数の個数: 48

約数和(自身を含む): 42688800

約数和(自身を除く): 24012740

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 218, 260, 436, 545, 659, 1090, 1318, 1417, 2180, 2636, 2834, 3295, 5668, 6590, 7085, 8567, 13180, 14170, 17134, 28340, 34268, 42835, 71831, 85670, 143662, 171340, 287324, 359155, 718310, 933803, 1436620, 1867606, 3735212, 4669015, 9338030, 18676060]

約数ペア:

[(1, 18676060), (2, 9338030), (4, 4669015), (5, 3735212), (10, 1867606), (13, 1436620), (20, 933803), (26, 718310), (52, 359155), (65, 287324), (109, 171340), (130, 143662), (218, 85670), (260, 71831), (436, 42835), (545, 34268), (659, 28340), (1090, 17134), (1318, 14170), (1417, 13180), (2180, 8567), (2636, 7085), (2834, 6590), (3295, 5668)]