20401471996

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{222403}}^1$

素因数の和:222514

約数の個数: 48

約数和(自身を含む): 40352981760

約数和(自身を除く): 19951509764

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 71, 76, 142, 284, 323, 646, 1207, 1292, 1349, 2414, 2698, 4828, 5396, 22933, 45866, 91732, 222403, 444806, 889612, 3780851, 4225657, 7561702, 8451314, 15123404, 15790613, 16902628, 31581226, 63162452, 71836169, 143672338, 268440421, 287344676, 300021647, 536880842, 600043294, 1073761684, 1200086588, 5100367999, 10200735998, 20401471996]

約数ペア:

[(1, 20401471996), (2, 10200735998), (4, 5100367999), (17, 1200086588), (19, 1073761684), (34, 600043294), (38, 536880842), (68, 300021647), (71, 287344676), (76, 268440421), (142, 143672338), (284, 71836169), (323, 63162452), (646, 31581226), (1207, 16902628), (1292, 15790613), (1349, 15123404), (2414, 8451314), (2698, 7561702), (4828, 4225657), (5396, 3780851), (22933, 889612), (45866, 444806), (91732, 222403)]