18664425

素因数分解:

$3^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{709}}^1$

素因数の和:744

約数の個数: 60

約数和(自身を含む): 37284940

約数和(自身を除く): 18620515

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 81, 117, 135, 195, 225, 325, 351, 405, 585, 675, 709, 975, 1053, 1755, 2025, 2127, 2925, 3545, 5265, 6381, 8775, 9217, 10635, 17725, 19143, 26325, 27651, 31905, 46085, 53175, 57429, 82953, 95715, 138255, 159525, 230425, 248859, 287145, 414765, 478575, 691275, 746577, 1244295, 1435725, 2073825, 3732885, 6221475, 18664425]

約数ペア:

[(1, 18664425), (3, 6221475), (5, 3732885), (9, 2073825), (13, 1435725), (15, 1244295), (25, 746577), (27, 691275), (39, 478575), (45, 414765), (65, 287145), (75, 248859), (81, 230425), (117, 159525), (135, 138255), (195, 95715), (225, 82953), (325, 57429), (351, 53175), (405, 46085), (585, 31905), (675, 27651), (709, 26325), (975, 19143), (1053, 17725), (1755, 10635), (2025, 9217), (2127, 8775), (2925, 6381), (3545, 5265)]