20070728

素因数分解:

$2^3\times {\mathrm{83}}^1\times {\mathrm{167}}^1\times {\mathrm{181}}^1$

素因数の和:437

約数の個数: 32

約数和(自身を含む): 38525760

約数和(自身を除く): 18455032

約数列:

[1, 2, 4, 8, 83, 166, 167, 181, 332, 334, 362, 664, 668, 724, 1336, 1448, 13861, 15023, 27722, 30046, 30227, 55444, 60092, 60454, 110888, 120184, 120908, 241816, 2508841, 5017682, 10035364, 20070728]

約数ペア:

[(1, 20070728), (2, 10035364), (4, 5017682), (8, 2508841), (83, 241816), (166, 120908), (167, 120184), (181, 110888), (332, 60454), (334, 60092), (362, 55444), (664, 30227), (668, 30046), (724, 27722), (1336, 15023), (1448, 13861)]