72150220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{1049}}^1$

素因数の和:1258

約数の個数: 48

約数和(自身を含む): 160524000

約数和(自身を除く): 88373780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 181, 190, 362, 380, 724, 905, 1049, 1810, 2098, 3439, 3620, 4196, 5245, 6878, 10490, 13756, 17195, 19931, 20980, 34390, 39862, 68780, 79724, 99655, 189869, 199310, 379738, 398620, 759476, 949345, 1898690, 3607511, 3797380, 7215022, 14430044, 18037555, 36075110, 72150220]

約数ペア:

[(1, 72150220), (2, 36075110), (4, 18037555), (5, 14430044), (10, 7215022), (19, 3797380), (20, 3607511), (38, 1898690), (76, 949345), (95, 759476), (181, 398620), (190, 379738), (362, 199310), (380, 189869), (724, 99655), (905, 79724), (1049, 68780), (1810, 39862), (2098, 34390), (3439, 20980), (3620, 19931), (4196, 17195), (5245, 13756), (6878, 10490)]