18724420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{6547}}^1$

素因数の和:6580

約数の個数: 48

約数和(自身を含む): 46202688

約数和(自身を除く): 27478268

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, 6547, 13094, 26188, 32735, 65470, 72017, 85111, 130940, 144034, 170222, 288068, 340444, 360085, 425555, 720170, 851110, 936221, 1440340, 1702220, 1872442, 3744884, 4681105, 9362210, 18724420]

約数ペア:

[(1, 18724420), (2, 9362210), (4, 4681105), (5, 3744884), (10, 1872442), (11, 1702220), (13, 1440340), (20, 936221), (22, 851110), (26, 720170), (44, 425555), (52, 360085), (55, 340444), (65, 288068), (110, 170222), (130, 144034), (143, 130940), (220, 85111), (260, 72017), (286, 65470), (572, 32735), (715, 26188), (1430, 13094), (2860, 6547)]