20216502620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{274457}}^1$

素因数の和:274622

約数の個数: 48

約数和(自身を含む): 44264586240

約数和(自身を除く): 24048083620

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 127, 145, 254, 290, 508, 580, 635, 1270, 2540, 3683, 7366, 14732, 18415, 36830, 73660, 274457, 548914, 1097828, 1372285, 2744570, 5489140, 7959253, 15918506, 31837012, 34856039, 39796265, 69712078, 79592530, 139424156, 159185060, 174280195, 348560390, 697120780, 1010825131, 2021650262, 4043300524, 5054125655, 10108251310, 20216502620]

約数ペア:

[(1, 20216502620), (2, 10108251310), (4, 5054125655), (5, 4043300524), (10, 2021650262), (20, 1010825131), (29, 697120780), (58, 348560390), (116, 174280195), (127, 159185060), (145, 139424156), (254, 79592530), (290, 69712078), (508, 39796265), (580, 34856039), (635, 31837012), (1270, 15918506), (2540, 7959253), (3683, 5489140), (7366, 2744570), (14732, 1372285), (18415, 1097828), (36830, 548914), (73660, 274457)]