20916200

素因数分解:

$2^3\times 5^2\times {\mathrm{23}}^1\times {\mathrm{4547}}^1$

素因数の和:4586

約数の個数: 48

約数和(自身を含む): 50755680

約数和(自身を除く): 29839480

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 92, 100, 115, 184, 200, 230, 460, 575, 920, 1150, 2300, 4547, 4600, 9094, 18188, 22735, 36376, 45470, 90940, 104581, 113675, 181880, 209162, 227350, 418324, 454700, 522905, 836648, 909400, 1045810, 2091620, 2614525, 4183240, 5229050, 10458100, 20916200]

約数ペア:

[(1, 20916200), (2, 10458100), (4, 5229050), (5, 4183240), (8, 2614525), (10, 2091620), (20, 1045810), (23, 909400), (25, 836648), (40, 522905), (46, 454700), (50, 418324), (92, 227350), (100, 209162), (115, 181880), (184, 113675), (200, 104581), (230, 90940), (460, 45470), (575, 36376), (920, 22735), (1150, 18188), (2300, 9094), (4547, 4600)]