18660375

素因数分解:

$3^4\times 5^3\times {\mathrm{19}}^1\times {\mathrm{97}}^1$

素因数の和:143

約数の個数: 80

約数和(自身を含む): 36996960

約数和(自身を除く): 18336585

約数列:

[1, 3, 5, 9, 15, 19, 25, 27, 45, 57, 75, 81, 95, 97, 125, 135, 171, 225, 285, 291, 375, 405, 475, 485, 513, 675, 855, 873, 1125, 1425, 1455, 1539, 1843, 2025, 2375, 2425, 2565, 2619, 3375, 4275, 4365, 5529, 7125, 7275, 7695, 7857, 9215, 10125, 12125, 12825, 13095, 16587, 21375, 21825, 27645, 36375, 38475, 39285, 46075, 49761, 64125, 65475, 82935, 109125, 138225, 149283, 192375, 196425, 230375, 248805, 327375, 414675, 691125, 746415, 982125, 1244025, 2073375, 3732075, 6220125, 18660375]

約数ペア:

[(1, 18660375), (3, 6220125), (5, 3732075), (9, 2073375), (15, 1244025), (19, 982125), (25, 746415), (27, 691125), (45, 414675), (57, 327375), (75, 248805), (81, 230375), (95, 196425), (97, 192375), (125, 149283), (135, 138225), (171, 109125), (225, 82935), (285, 65475), (291, 64125), (375, 49761), (405, 46075), (475, 39285), (485, 38475), (513, 36375), (675, 27645), (855, 21825), (873, 21375), (1125, 16587), (1425, 13095), (1455, 12825), (1539, 12125), (1843, 10125), (2025, 9215), (2375, 7857), (2425, 7695), (2565, 7275), (2619, 7125), (3375, 5529), (4275, 4365)]