78480

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{109}}^1$

素因数の和:128

約数の個数: 60

約数和(自身を含む): 265980

約数和(自身を除く): 187500

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 109, 120, 144, 180, 218, 240, 327, 360, 436, 545, 654, 720, 872, 981, 1090, 1308, 1635, 1744, 1962, 2180, 2616, 3270, 3924, 4360, 4905, 5232, 6540, 7848, 8720, 9810, 13080, 15696, 19620, 26160, 39240, 78480]

約数ペア:

[(1, 78480), (2, 39240), (3, 26160), (4, 19620), (5, 15696), (6, 13080), (8, 9810), (9, 8720), (10, 7848), (12, 6540), (15, 5232), (16, 4905), (18, 4360), (20, 3924), (24, 3270), (30, 2616), (36, 2180), (40, 1962), (45, 1744), (48, 1635), (60, 1308), (72, 1090), (80, 981), (90, 872), (109, 720), (120, 654), (144, 545), (180, 436), (218, 360), (240, 327)]