20106172695

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{257}}^1\times {\mathrm{106441}}^1$

素因数の和:106720

約数の個数: 48

約数和(自身を含む): 37568065248

約数和(自身を除く): 17461892553

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 257, 735, 771, 1285, 1799, 3855, 5397, 8995, 12593, 26985, 37779, 62965, 106441, 188895, 319323, 532205, 745087, 1596615, 2235261, 3725435, 5215609, 11176305, 15646827, 26078045, 27355337, 78234135, 82066011, 136776685, 191487359, 410330055, 574462077, 957436795, 1340411513, 2872310385, 4021234539, 6702057565, 20106172695]

約数ペア:

[(1, 20106172695), (3, 6702057565), (5, 4021234539), (7, 2872310385), (15, 1340411513), (21, 957436795), (35, 574462077), (49, 410330055), (105, 191487359), (147, 136776685), (245, 82066011), (257, 78234135), (735, 27355337), (771, 26078045), (1285, 15646827), (1799, 11176305), (3855, 5215609), (5397, 3725435), (8995, 2235261), (12593, 1596615), (26985, 745087), (37779, 532205), (62965, 319323), (106441, 188895)]