18443425

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1$

素因数の和:119

約数の個数: 72

約数和(自身を含む): 31400768

約数和(自身を除く): 12957343

約数列:

[1, 5, 7, 11, 13, 25, 35, 55, 65, 67, 77, 91, 121, 143, 175, 275, 325, 335, 385, 455, 469, 605, 715, 737, 847, 871, 1001, 1573, 1675, 1925, 2275, 2345, 3025, 3575, 3685, 4235, 4355, 5005, 5159, 6097, 7865, 8107, 9581, 11011, 11725, 18425, 21175, 21775, 25025, 25795, 30485, 39325, 40535, 47905, 55055, 56749, 67067, 105391, 128975, 152425, 202675, 239525, 275275, 283745, 335335, 526955, 737737, 1418725, 1676675, 2634775, 3688685, 18443425]

約数ペア:

[(1, 18443425), (5, 3688685), (7, 2634775), (11, 1676675), (13, 1418725), (25, 737737), (35, 526955), (55, 335335), (65, 283745), (67, 275275), (77, 239525), (91, 202675), (121, 152425), (143, 128975), (175, 105391), (275, 67067), (325, 56749), (335, 55055), (385, 47905), (455, 40535), (469, 39325), (605, 30485), (715, 25795), (737, 25025), (847, 21775), (871, 21175), (1001, 18425), (1573, 11725), (1675, 11011), (1925, 9581), (2275, 8107), (2345, 7865), (3025, 6097), (3575, 5159), (3685, 5005), (4235, 4355)]