28239620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{269}}^1$

素因数の和:488

約数の個数: 48

約数和(自身を含む): 61916400

約数和(自身を除く): 33676780

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 181, 269, 290, 362, 538, 580, 724, 905, 1076, 1345, 1810, 2690, 3620, 5249, 5380, 7801, 10498, 15602, 20996, 26245, 31204, 39005, 48689, 52490, 78010, 97378, 104980, 156020, 194756, 243445, 486890, 973780, 1411981, 2823962, 5647924, 7059905, 14119810, 28239620]

約数ペア:

[(1, 28239620), (2, 14119810), (4, 7059905), (5, 5647924), (10, 2823962), (20, 1411981), (29, 973780), (58, 486890), (116, 243445), (145, 194756), (181, 156020), (269, 104980), (290, 97378), (362, 78010), (538, 52490), (580, 48689), (724, 39005), (905, 31204), (1076, 26245), (1345, 20996), (1810, 15602), (2690, 10498), (3620, 7801), (5249, 5380)]