20201997320

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{461}}^1\times {\mathrm{8363}}^1$

素因数の和:8966

約数の個数: 64

約数和(自身を含む): 45906315840

約数和(自身を除く): 25704318520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 461, 524, 655, 922, 1048, 1310, 1844, 2305, 2620, 3688, 4610, 5240, 8363, 9220, 16726, 18440, 33452, 41815, 60391, 66904, 83630, 120782, 167260, 241564, 301955, 334520, 483128, 603910, 1095553, 1207820, 2191106, 2415640, 3855343, 4382212, 5477765, 7710686, 8764424, 10955530, 15421372, 19276715, 21911060, 30842744, 38553430, 43822120, 77106860, 154213720, 505049933, 1010099866, 2020199732, 2525249665, 4040399464, 5050499330, 10100998660, 20201997320]

約数ペア:

[(1, 20201997320), (2, 10100998660), (4, 5050499330), (5, 4040399464), (8, 2525249665), (10, 2020199732), (20, 1010099866), (40, 505049933), (131, 154213720), (262, 77106860), (461, 43822120), (524, 38553430), (655, 30842744), (922, 21911060), (1048, 19276715), (1310, 15421372), (1844, 10955530), (2305, 8764424), (2620, 7710686), (3688, 5477765), (4610, 4382212), (5240, 3855343), (8363, 2415640), (9220, 2191106), (16726, 1207820), (18440, 1095553), (33452, 603910), (41815, 483128), (60391, 334520), (66904, 301955), (83630, 241564), (120782, 167260)]