68981360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{619}}^1$

素因数の和:838

約数の個数: 80

約数和(自身を含む): 184512000

約数和(自身を除く): 115530640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 199, 280, 398, 560, 619, 796, 995, 1238, 1393, 1592, 1990, 2476, 2786, 3095, 3184, 3980, 4333, 4952, 5572, 6190, 6965, 7960, 8666, 9904, 11144, 12380, 13930, 15920, 17332, 21665, 22288, 24760, 27860, 34664, 43330, 49520, 55720, 69328, 86660, 111440, 123181, 173320, 246362, 346640, 492724, 615905, 862267, 985448, 1231810, 1724534, 1970896, 2463620, 3449068, 4311335, 4927240, 6898136, 8622670, 9854480, 13796272, 17245340, 34490680, 68981360]

約数ペア:

[(1, 68981360), (2, 34490680), (4, 17245340), (5, 13796272), (7, 9854480), (8, 8622670), (10, 6898136), (14, 4927240), (16, 4311335), (20, 3449068), (28, 2463620), (35, 1970896), (40, 1724534), (56, 1231810), (70, 985448), (80, 862267), (112, 615905), (140, 492724), (199, 346640), (280, 246362), (398, 173320), (560, 123181), (619, 111440), (796, 86660), (995, 69328), (1238, 55720), (1393, 49520), (1592, 43330), (1990, 34664), (2476, 27860), (2786, 24760), (3095, 22288), (3184, 21665), (3980, 17332), (4333, 15920), (4952, 13930), (5572, 12380), (6190, 11144), (6965, 9904), (7960, 8666)]