645754610

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{639361}}^1$

素因数の和:639469

約数の個数: 16

約数和(自身を含む): 1173868632

約数和(自身を除く): 528114022

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 639361, 1278722, 3196805, 6393610, 64575461, 129150922, 322877305, 645754610]

約数ペア:

[(1, 645754610), (2, 322877305), (5, 129150922), (10, 64575461), (101, 6393610), (202, 3196805), (505, 1278722), (1010, 639361)]