161655720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{727}}^1$

素因数の和:867

約数の個数: 128

約数和(自身を含む): 518918400

約数和(自身を除く): 357262680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 109, 120, 136, 170, 204, 218, 255, 327, 340, 408, 436, 510, 545, 654, 680, 727, 872, 1020, 1090, 1308, 1454, 1635, 1853, 2040, 2180, 2181, 2616, 2908, 3270, 3635, 3706, 4360, 4362, 5559, 5816, 6540, 7270, 7412, 8724, 9265, 10905, 11118, 12359, 13080, 14540, 14824, 17448, 18530, 21810, 22236, 24718, 27795, 29080, 37060, 37077, 43620, 44472, 49436, 55590, 61795, 74120, 74154, 79243, 87240, 98872, 111180, 123590, 148308, 158486, 185385, 222360, 237729, 247180, 296616, 316972, 370770, 396215, 475458, 494360, 633944, 741540, 792430, 950916, 1188645, 1347131, 1483080, 1584860, 1901832, 2377290, 2694262, 3169720, 4041393, 4754580, 5388524, 6735655, 8082786, 9509160, 10777048, 13471310, 16165572, 20206965, 26942620, 32331144, 40413930, 53885240, 80827860, 161655720]

約数ペア:

[(1, 161655720), (2, 80827860), (3, 53885240), (4, 40413930), (5, 32331144), (6, 26942620), (8, 20206965), (10, 16165572), (12, 13471310), (15, 10777048), (17, 9509160), (20, 8082786), (24, 6735655), (30, 5388524), (34, 4754580), (40, 4041393), (51, 3169720), (60, 2694262), (68, 2377290), (85, 1901832), (102, 1584860), (109, 1483080), (120, 1347131), (136, 1188645), (170, 950916), (204, 792430), (218, 741540), (255, 633944), (327, 494360), (340, 475458), (408, 396215), (436, 370770), (510, 316972), (545, 296616), (654, 247180), (680, 237729), (727, 222360), (872, 185385), (1020, 158486), (1090, 148308), (1308, 123590), (1454, 111180), (1635, 98872), (1853, 87240), (2040, 79243), (2180, 74154), (2181, 74120), (2616, 61795), (2908, 55590), (3270, 49436), (3635, 44472), (3706, 43620), (4360, 37077), (4362, 37060), (5559, 29080), (5816, 27795), (6540, 24718), (7270, 22236), (7412, 21810), (8724, 18530), (9265, 17448), (10905, 14824), (11118, 14540), (12359, 13080)]