18480615

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{137}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 32967648

約数和(自身を除く): 14487033

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 115, 137, 255, 345, 391, 411, 529, 685, 1173, 1587, 1955, 2055, 2329, 2645, 3151, 5865, 6987, 7935, 8993, 9453, 11645, 15755, 26979, 34935, 44965, 47265, 53567, 72473, 134895, 160701, 217419, 267835, 362365, 803505, 1087095, 1232041, 3696123, 6160205, 18480615]

約数ペア:

[(1, 18480615), (3, 6160205), (5, 3696123), (15, 1232041), (17, 1087095), (23, 803505), (51, 362365), (69, 267835), (85, 217419), (115, 160701), (137, 134895), (255, 72473), (345, 53567), (391, 47265), (411, 44965), (529, 34935), (685, 26979), (1173, 15755), (1587, 11645), (1955, 9453), (2055, 8993), (2329, 7935), (2645, 6987), (3151, 5865)]