20348540780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{223463}}^1$

素因数の和:223658

約数の個数: 48

約数和(自身を含む): 44487213120

約数和(自身を除く): 24138672340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 157, 290, 314, 580, 628, 785, 1570, 3140, 4553, 9106, 18212, 22765, 45530, 91060, 223463, 446926, 893852, 1117315, 2234630, 4469260, 6480427, 12960854, 25921708, 32402135, 35083691, 64804270, 70167382, 129608540, 140334764, 175418455, 350836910, 701673820, 1017427039, 2034854078, 4069708156, 5087135195, 10174270390, 20348540780]

約数ペア:

[(1, 20348540780), (2, 10174270390), (4, 5087135195), (5, 4069708156), (10, 2034854078), (20, 1017427039), (29, 701673820), (58, 350836910), (116, 175418455), (145, 140334764), (157, 129608540), (290, 70167382), (314, 64804270), (580, 35083691), (628, 32402135), (785, 25921708), (1570, 12960854), (3140, 6480427), (4553, 4469260), (9106, 2234630), (18212, 1117315), (22765, 893852), (45530, 446926), (91060, 223463)]