220780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1$

素因数の和:118

約数の個数: 48

約数和(自身を含む): 564480

約数和(自身を除く): 343700

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 83, 95, 133, 140, 166, 190, 266, 332, 380, 415, 532, 581, 665, 830, 1162, 1330, 1577, 1660, 2324, 2660, 2905, 3154, 5810, 6308, 7885, 11039, 11620, 15770, 22078, 31540, 44156, 55195, 110390, 220780]

約数ペア:

[(1, 220780), (2, 110390), (4, 55195), (5, 44156), (7, 31540), (10, 22078), (14, 15770), (19, 11620), (20, 11039), (28, 7885), (35, 6308), (38, 5810), (70, 3154), (76, 2905), (83, 2660), (95, 2324), (133, 1660), (140, 1577), (166, 1330), (190, 1162), (266, 830), (332, 665), (380, 581), (415, 532)]