400710380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{757}}^1$

素因数の和:991

約数の個数: 96

約数和(自身を含む): 1018752000

約数和(自身を除く): 618041620

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 199, 266, 380, 398, 532, 665, 757, 796, 995, 1330, 1393, 1514, 1990, 2660, 2786, 3028, 3781, 3785, 3980, 5299, 5572, 6965, 7562, 7570, 10598, 13930, 14383, 15124, 15140, 18905, 21196, 26467, 26495, 27860, 28766, 37810, 52934, 52990, 57532, 71915, 75620, 100681, 105868, 105980, 132335, 143830, 150643, 201362, 264670, 287660, 301286, 402724, 503405, 529340, 602572, 753215, 1006810, 1054501, 1506430, 2013620, 2109002, 2862217, 3012860, 4218004, 5272505, 5724434, 10545010, 11448868, 14311085, 20035519, 21090020, 28622170, 40071038, 57244340, 80142076, 100177595, 200355190, 400710380]

約数ペア:

[(1, 400710380), (2, 200355190), (4, 100177595), (5, 80142076), (7, 57244340), (10, 40071038), (14, 28622170), (19, 21090020), (20, 20035519), (28, 14311085), (35, 11448868), (38, 10545010), (70, 5724434), (76, 5272505), (95, 4218004), (133, 3012860), (140, 2862217), (190, 2109002), (199, 2013620), (266, 1506430), (380, 1054501), (398, 1006810), (532, 753215), (665, 602572), (757, 529340), (796, 503405), (995, 402724), (1330, 301286), (1393, 287660), (1514, 264670), (1990, 201362), (2660, 150643), (2786, 143830), (3028, 132335), (3781, 105980), (3785, 105868), (3980, 100681), (5299, 75620), (5572, 71915), (6965, 57532), (7562, 52990), (7570, 52934), (10598, 37810), (13930, 28766), (14383, 27860), (15124, 26495), (15140, 26467), (18905, 21196)]