1281312796

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{2063}}^1$

素因数の和:2290

約数の個数: 48

約数和(自身を含む): 2410619904

約数和(自身を除く): 1129307108

約数列:

[1, 2, 4, 23, 43, 46, 86, 92, 157, 172, 314, 628, 989, 1978, 2063, 3611, 3956, 4126, 6751, 7222, 8252, 13502, 14444, 27004, 47449, 88709, 94898, 155273, 177418, 189796, 310546, 323891, 354836, 621092, 647782, 1295564, 2040307, 4080614, 7449493, 8161228, 13927313, 14898986, 27854626, 29797972, 55709252, 320328199, 640656398, 1281312796]

約数ペア:

[(1, 1281312796), (2, 640656398), (4, 320328199), (23, 55709252), (43, 29797972), (46, 27854626), (86, 14898986), (92, 13927313), (157, 8161228), (172, 7449493), (314, 4080614), (628, 2040307), (989, 1295564), (1978, 647782), (2063, 621092), (3611, 354836), (3956, 323891), (4126, 310546), (6751, 189796), (7222, 177418), (8252, 155273), (13502, 94898), (14444, 88709), (27004, 47449)]