20190931478

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{67601}}^1$

素因数の和:67820

約数の個数: 32

約数和(自身を含む): 32552796672

約数和(自身を除く): 12361865194

約数列:

[1, 2, 23, 43, 46, 86, 151, 302, 989, 1978, 3473, 6493, 6946, 12986, 67601, 135202, 149339, 298678, 1554823, 2906843, 3109646, 5813686, 10207751, 20415502, 66857389, 133714778, 234778273, 438933293, 469556546, 877866586, 10095465739, 20190931478]

約数ペア:

[(1, 20190931478), (2, 10095465739), (23, 877866586), (43, 469556546), (46, 438933293), (86, 234778273), (151, 133714778), (302, 66857389), (989, 20415502), (1978, 10207751), (3473, 5813686), (6493, 3109646), (6946, 2906843), (12986, 1554823), (67601, 298678), (135202, 149339)]