199179620

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{229}}^1\times {\mathrm{277}}^1$

素因数の和:672

約数の個数: 48

約数和(自身を含む): 424305840

約数和(自身を除く): 225126220

約数列:

[1, 2, 4, 5, 10, 20, 157, 229, 277, 314, 458, 554, 628, 785, 916, 1108, 1145, 1385, 1570, 2290, 2770, 3140, 4580, 5540, 35953, 43489, 63433, 71906, 86978, 126866, 143812, 173956, 179765, 217445, 253732, 317165, 359530, 434890, 634330, 719060, 869780, 1268660, 9958981, 19917962, 39835924, 49794905, 99589810, 199179620]

約数ペア:

[(1, 199179620), (2, 99589810), (4, 49794905), (5, 39835924), (10, 19917962), (20, 9958981), (157, 1268660), (229, 869780), (277, 719060), (314, 634330), (458, 434890), (554, 359530), (628, 317165), (785, 253732), (916, 217445), (1108, 179765), (1145, 173956), (1385, 143812), (1570, 126866), (2290, 86978), (2770, 71906), (3140, 63433), (4580, 43489), (5540, 35953)]