20177802652

素因数分解:

$2^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{251}}^1\times {\mathrm{18287}}^1$

素因数の和:18706

約数の個数: 48

約数和(自身を含む): 40776680448

約数和(自身を除く): 20598877796

約数列:

[1, 2, 4, 7, 14, 28, 157, 251, 314, 502, 628, 1004, 1099, 1757, 2198, 3514, 4396, 7028, 18287, 36574, 39407, 73148, 78814, 128009, 157628, 256018, 275849, 512036, 551698, 1103396, 2871059, 4590037, 5742118, 9180074, 11484236, 18360148, 20097413, 32130259, 40194826, 64260518, 80389652, 128521036, 720635809, 1441271618, 2882543236, 5044450663, 10088901326, 20177802652]

約数ペア:

[(1, 20177802652), (2, 10088901326), (4, 5044450663), (7, 2882543236), (14, 1441271618), (28, 720635809), (157, 128521036), (251, 80389652), (314, 64260518), (502, 40194826), (628, 32130259), (1004, 20097413), (1099, 18360148), (1757, 11484236), (2198, 9180074), (3514, 5742118), (4396, 4590037), (7028, 2871059), (18287, 1103396), (36574, 551698), (39407, 512036), (73148, 275849), (78814, 256018), (128009, 157628)]