20408616

素因数分解:

$2^3\times 3^2\times {\mathrm{137}}^1\times {\mathrm{2069}}^1$

素因数の和:2218

約数の個数: 48

約数和(自身を含む): 55703700

約数和(自身を除く): 35295084

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 137, 274, 411, 548, 822, 1096, 1233, 1644, 2069, 2466, 3288, 4138, 4932, 6207, 8276, 9864, 12414, 16552, 18621, 24828, 37242, 49656, 74484, 148968, 283453, 566906, 850359, 1133812, 1700718, 2267624, 2551077, 3401436, 5102154, 6802872, 10204308, 20408616]

約数ペア:

[(1, 20408616), (2, 10204308), (3, 6802872), (4, 5102154), (6, 3401436), (8, 2551077), (9, 2267624), (12, 1700718), (18, 1133812), (24, 850359), (36, 566906), (72, 283453), (137, 148968), (274, 74484), (411, 49656), (548, 37242), (822, 24828), (1096, 18621), (1233, 16552), (1644, 12414), (2069, 9864), (2466, 8276), (3288, 6207), (4138, 4932)]