19765460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{6911}}^1$

素因数の和:6944

約数の個数: 48

約数和(自身を含む): 48771072

約数和(自身を除く): 29005612

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, 6911, 13822, 27644, 34555, 69110, 76021, 89843, 138220, 152042, 179686, 304084, 359372, 380105, 449215, 760210, 898430, 988273, 1520420, 1796860, 1976546, 3953092, 4941365, 9882730, 19765460]

約数ペア:

[(1, 19765460), (2, 9882730), (4, 4941365), (5, 3953092), (10, 1976546), (11, 1796860), (13, 1520420), (20, 988273), (22, 898430), (26, 760210), (44, 449215), (52, 380105), (55, 359372), (65, 304084), (110, 179686), (130, 152042), (143, 138220), (220, 89843), (260, 76021), (286, 69110), (572, 34555), (715, 27644), (1430, 13822), (2860, 6911)]