20017000

素因数分解:

$2^3\times 5^3\times {\mathrm{37}}^1\times {\mathrm{541}}^1$

素因数の和:599

約数の個数: 64

約数和(自身を含む): 48194640

約数和(自身を除く): 28177640

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 37, 40, 50, 74, 100, 125, 148, 185, 200, 250, 296, 370, 500, 541, 740, 925, 1000, 1082, 1480, 1850, 2164, 2705, 3700, 4328, 4625, 5410, 7400, 9250, 10820, 13525, 18500, 20017, 21640, 27050, 37000, 40034, 54100, 67625, 80068, 100085, 108200, 135250, 160136, 200170, 270500, 400340, 500425, 541000, 800680, 1000850, 2001700, 2502125, 4003400, 5004250, 10008500, 20017000]

約数ペア:

[(1, 20017000), (2, 10008500), (4, 5004250), (5, 4003400), (8, 2502125), (10, 2001700), (20, 1000850), (25, 800680), (37, 541000), (40, 500425), (50, 400340), (74, 270500), (100, 200170), (125, 160136), (148, 135250), (185, 108200), (200, 100085), (250, 80068), (296, 67625), (370, 54100), (500, 40034), (541, 37000), (740, 27050), (925, 21640), (1000, 20017), (1082, 18500), (1480, 13525), (1850, 10820), (2164, 9250), (2705, 7400), (3700, 5410), (4328, 4625)]