18821660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{6581}}^1$

素因数の和:6614

約数の個数: 48

約数和(自身を含む): 46442592

約数和(自身を除く): 27620932

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 6581, 13162, 26324, 32905, 65810, 72391, 85553, 131620, 144782, 171106, 289564, 342212, 361955, 427765, 723910, 855530, 941083, 1447820, 1711060, 1882166, 3764332, 4705415, 9410830, 18821660]

約数ペア:

[(1, 18821660), (2, 9410830), (4, 4705415), (5, 3764332), (10, 1882166), (11, 1711060), (13, 1447820), (20, 941083), (22, 855530), (26, 723910), (44, 427765), (52, 361955), (55, 342212), (65, 289564), (110, 171106), (130, 144782), (143, 131620), (220, 85553), (260, 72391), (286, 65810), (572, 32905), (715, 26324), (1430, 13162), (2860, 6581)]