72807140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{74293}}^1$

素因数の和:74316

約数の個数: 36

約数和(自身を含む): 177859836

約数和(自身を除く): 105052696

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 74293, 148586, 297172, 371465, 520051, 742930, 1040102, 1485860, 2080204, 2600255, 3640357, 5200510, 7280714, 10401020, 14561428, 18201785, 36403570, 72807140]

約数ペア:

[(1, 72807140), (2, 36403570), (4, 18201785), (5, 14561428), (7, 10401020), (10, 7280714), (14, 5200510), (20, 3640357), (28, 2600255), (35, 2080204), (49, 1485860), (70, 1040102), (98, 742930), (140, 520051), (196, 371465), (245, 297172), (490, 148586), (980, 74293)]