51540640

素因数分解:

$2^5\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2459}}^1$

素因数の和:2605

約数の個数: 48

約数和(自身を含む): 122744160

約数和(自身を除く): 71203520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 131, 160, 262, 524, 655, 1048, 1310, 2096, 2459, 2620, 4192, 4918, 5240, 9836, 10480, 12295, 19672, 20960, 24590, 39344, 49180, 78688, 98360, 196720, 322129, 393440, 644258, 1288516, 1610645, 2577032, 3221290, 5154064, 6442580, 10308128, 12885160, 25770320, 51540640]

約数ペア:

[(1, 51540640), (2, 25770320), (4, 12885160), (5, 10308128), (8, 6442580), (10, 5154064), (16, 3221290), (20, 2577032), (32, 1610645), (40, 1288516), (80, 644258), (131, 393440), (160, 322129), (262, 196720), (524, 98360), (655, 78688), (1048, 49180), (1310, 39344), (2096, 24590), (2459, 20960), (2620, 19672), (4192, 12295), (4918, 10480), (5240, 9836)]