207906140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{509}}^1\times {\mathrm{1571}}^1$

素因数の和:2102

約数の個数: 48

約数和(自身を含む): 471411360

約数和(自身を除く): 263505220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 509, 1018, 1571, 2036, 2545, 3142, 5090, 6284, 6617, 7855, 10180, 13234, 15710, 20423, 26468, 31420, 33085, 40846, 66170, 81692, 102115, 132340, 204230, 408460, 799639, 1599278, 3198556, 3998195, 7996390, 10395307, 15992780, 20790614, 41581228, 51976535, 103953070, 207906140]

約数ペア:

[(1, 207906140), (2, 103953070), (4, 51976535), (5, 41581228), (10, 20790614), (13, 15992780), (20, 10395307), (26, 7996390), (52, 3998195), (65, 3198556), (130, 1599278), (260, 799639), (509, 408460), (1018, 204230), (1571, 132340), (2036, 102115), (2545, 81692), (3142, 66170), (5090, 40846), (6284, 33085), (6617, 31420), (7855, 26468), (10180, 20423), (13234, 15710)]