721000229864

素因数分解:

$2^3\times {\mathrm{157}}^1\times {\mathrm{4133}}^1\times {\mathrm{138893}}^1$

素因数の和:143189

約数の個数: 32

約数和(自身を含む): 1360825076520

約数和(自身を除く): 639824846656

約数列:

[1, 2, 4, 8, 157, 314, 628, 1256, 4133, 8266, 16532, 33064, 138893, 277786, 555572, 648881, 1111144, 1297762, 2595524, 5191048, 21806201, 43612402, 87224804, 174449608, 574044769, 1148089538, 2296179076, 4592358152, 90125028733, 180250057466, 360500114932, 721000229864]

約数ペア:

[(1, 721000229864), (2, 360500114932), (4, 180250057466), (8, 90125028733), (157, 4592358152), (314, 2296179076), (628, 1148089538), (1256, 574044769), (4133, 174449608), (8266, 87224804), (16532, 43612402), (33064, 21806201), (138893, 5191048), (277786, 2595524), (555572, 1297762), (648881, 1111144)]