64907380

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{947}}^1$

素因数の和:1128

約数の個数: 48

約数和(自身を含む): 143337600

約数和(自身を除く): 78430220

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 149, 230, 298, 460, 596, 745, 947, 1490, 1894, 2980, 3427, 3788, 4735, 6854, 9470, 13708, 17135, 18940, 21781, 34270, 43562, 68540, 87124, 108905, 141103, 217810, 282206, 435620, 564412, 705515, 1411030, 2822060, 3245369, 6490738, 12981476, 16226845, 32453690, 64907380]

約数ペア:

[(1, 64907380), (2, 32453690), (4, 16226845), (5, 12981476), (10, 6490738), (20, 3245369), (23, 2822060), (46, 1411030), (92, 705515), (115, 564412), (149, 435620), (230, 282206), (298, 217810), (460, 141103), (596, 108905), (745, 87124), (947, 68540), (1490, 43562), (1894, 34270), (2980, 21781), (3427, 18940), (3788, 17135), (4735, 13708), (6854, 9470)]