7981455

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1$

素因数の和:315

約数の個数: 32

約数和(自身を含む): 13362624

約数和(自身を除く): 5381169

約数列:

[1, 3, 5, 15, 37, 73, 111, 185, 197, 219, 365, 555, 591, 985, 1095, 2701, 2955, 7289, 8103, 13505, 14381, 21867, 36445, 40515, 43143, 71905, 109335, 215715, 532097, 1596291, 2660485, 7981455]

約数ペア:

[(1, 7981455), (3, 2660485), (5, 1596291), (15, 532097), (37, 215715), (73, 109335), (111, 71905), (185, 43143), (197, 40515), (219, 36445), (365, 21867), (555, 14381), (591, 13505), (985, 8103), (1095, 7289), (2701, 2955)]