40101980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1493}}^1$

素因数の和:1598

約数の個数: 48

約数和(自身を含む): 90357120

約数和(自身を除く): 50255140

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 79, 85, 158, 170, 316, 340, 395, 790, 1343, 1493, 1580, 2686, 2986, 5372, 5972, 6715, 7465, 13430, 14930, 25381, 26860, 29860, 50762, 101524, 117947, 126905, 235894, 253810, 471788, 507620, 589735, 1179470, 2005099, 2358940, 4010198, 8020396, 10025495, 20050990, 40101980]

約数ペア:

[(1, 40101980), (2, 20050990), (4, 10025495), (5, 8020396), (10, 4010198), (17, 2358940), (20, 2005099), (34, 1179470), (68, 589735), (79, 507620), (85, 471788), (158, 253810), (170, 235894), (316, 126905), (340, 117947), (395, 101524), (790, 50762), (1343, 29860), (1493, 26860), (1580, 25381), (2686, 14930), (2986, 13430), (5372, 7465), (5972, 6715)]