201912500

素因数分解:

$2^2\times 5^5\times {\mathrm{29}}^1\times {\mathrm{557}}^1$

素因数の和:615

約数の個数: 72

約数和(自身を含む): 457705080

約数和(自身を除く): 255792580

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 125, 145, 250, 290, 500, 557, 580, 625, 725, 1114, 1250, 1450, 2228, 2500, 2785, 2900, 3125, 3625, 5570, 6250, 7250, 11140, 12500, 13925, 14500, 16153, 18125, 27850, 32306, 36250, 55700, 64612, 69625, 72500, 80765, 90625, 139250, 161530, 181250, 278500, 323060, 348125, 362500, 403825, 696250, 807650, 1392500, 1615300, 1740625, 2019125, 3481250, 4038250, 6962500, 8076500, 10095625, 20191250, 40382500, 50478125, 100956250, 201912500]

約数ペア:

[(1, 201912500), (2, 100956250), (4, 50478125), (5, 40382500), (10, 20191250), (20, 10095625), (25, 8076500), (29, 6962500), (50, 4038250), (58, 3481250), (100, 2019125), (116, 1740625), (125, 1615300), (145, 1392500), (250, 807650), (290, 696250), (500, 403825), (557, 362500), (580, 348125), (625, 323060), (725, 278500), (1114, 181250), (1250, 161530), (1450, 139250), (2228, 90625), (2500, 80765), (2785, 72500), (2900, 69625), (3125, 64612), (3625, 55700), (5570, 36250), (6250, 32306), (7250, 27850), (11140, 18125), (12500, 16153), (13925, 14500)]