18190575

素因数分解:

$3^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{691}}^1$

素因数の和:726

約数の個数: 60

約数和(自身を含む): 36339688

約数和(自身を除く): 18149113

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, 691, 975, 1053, 1755, 2025, 2073, 2925, 3455, 5265, 6219, 8775, 8983, 10365, 17275, 18657, 26325, 26949, 31095, 44915, 51825, 55971, 80847, 93285, 134745, 155475, 224575, 242541, 279855, 404235, 466425, 673725, 727623, 1212705, 1399275, 2021175, 3638115, 6063525, 18190575]

約数ペア:

[(1, 18190575), (3, 6063525), (5, 3638115), (9, 2021175), (13, 1399275), (15, 1212705), (25, 727623), (27, 673725), (39, 466425), (45, 404235), (65, 279855), (75, 242541), (81, 224575), (117, 155475), (135, 134745), (195, 93285), (225, 80847), (325, 55971), (351, 51825), (405, 44915), (585, 31095), (675, 26949), (691, 26325), (975, 18657), (1053, 17275), (1755, 10365), (2025, 8983), (2073, 8775), (2925, 6219), (3455, 5265)]