17919460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^3$

素因数の和:145

約数の個数: 48

約数和(自身を含む): 41538672

約数和(自身を除く): 23619212

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 410, 533, 820, 1066, 1681, 2132, 2665, 3362, 5330, 6724, 8405, 10660, 16810, 21853, 33620, 43706, 68921, 87412, 109265, 137842, 218530, 275684, 344605, 437060, 689210, 895973, 1378420, 1791946, 3583892, 4479865, 8959730, 17919460]

約数ペア:

[(1, 17919460), (2, 8959730), (4, 4479865), (5, 3583892), (10, 1791946), (13, 1378420), (20, 895973), (26, 689210), (41, 437060), (52, 344605), (65, 275684), (82, 218530), (130, 137842), (164, 109265), (205, 87412), (260, 68921), (410, 43706), (533, 33620), (820, 21853), (1066, 16810), (1681, 10660), (2132, 8405), (2665, 6724), (3362, 5330)]