278720120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{52391}}^1$

素因数の和:52428

約数の個数: 64

約数和(自身を含む): 754444800

約数和(自身を除く): 475724680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 5320, 52391, 104782, 209564, 261955, 366737, 419128, 523910, 733474, 995429, 1047820, 1466948, 1833685, 1990858, 2095640, 2933896, 3667370, 3981716, 4977145, 6968003, 7334740, 7963432, 9954290, 13936006, 14669480, 19908580, 27872012, 34840015, 39817160, 55744024, 69680030, 139360060, 278720120]

約数ペア:

[(1, 278720120), (2, 139360060), (4, 69680030), (5, 55744024), (7, 39817160), (8, 34840015), (10, 27872012), (14, 19908580), (19, 14669480), (20, 13936006), (28, 9954290), (35, 7963432), (38, 7334740), (40, 6968003), (56, 4977145), (70, 3981716), (76, 3667370), (95, 2933896), (133, 2095640), (140, 1990858), (152, 1833685), (190, 1466948), (266, 1047820), (280, 995429), (380, 733474), (532, 523910), (665, 419128), (760, 366737), (1064, 261955), (1330, 209564), (2660, 104782), (5320, 52391)]