136643140

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1\times {\mathrm{439}}^1$

素因数の和:724

約数の個数: 48

約数和(自身を含む): 292723200

約数和(自身を除く): 156080060

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 197, 316, 394, 395, 439, 788, 790, 878, 985, 1580, 1756, 1970, 2195, 3940, 4390, 8780, 15563, 31126, 34681, 62252, 69362, 77815, 86483, 138724, 155630, 172966, 173405, 311260, 345932, 346810, 432415, 693620, 864830, 1729660, 6832157, 13664314, 27328628, 34160785, 68321570, 136643140]

約数ペア:

[(1, 136643140), (2, 68321570), (4, 34160785), (5, 27328628), (10, 13664314), (20, 6832157), (79, 1729660), (158, 864830), (197, 693620), (316, 432415), (394, 346810), (395, 345932), (439, 311260), (788, 173405), (790, 172966), (878, 155630), (985, 138724), (1580, 86483), (1756, 77815), (1970, 69362), (2195, 62252), (3940, 34681), (4390, 31126), (8780, 15563)]