18962500

素因数分解:

$2^2\times 5^5\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:107

約数の個数: 72

約数和(自身を含む): 43637832

約数和(自身を除く): 24675332

約数列:

[1, 2, 4, 5, 10, 20, 25, 37, 41, 50, 74, 82, 100, 125, 148, 164, 185, 205, 250, 370, 410, 500, 625, 740, 820, 925, 1025, 1250, 1517, 1850, 2050, 2500, 3034, 3125, 3700, 4100, 4625, 5125, 6068, 6250, 7585, 9250, 10250, 12500, 15170, 18500, 20500, 23125, 25625, 30340, 37925, 46250, 51250, 75850, 92500, 102500, 115625, 128125, 151700, 189625, 231250, 256250, 379250, 462500, 512500, 758500, 948125, 1896250, 3792500, 4740625, 9481250, 18962500]

約数ペア:

[(1, 18962500), (2, 9481250), (4, 4740625), (5, 3792500), (10, 1896250), (20, 948125), (25, 758500), (37, 512500), (41, 462500), (50, 379250), (74, 256250), (82, 231250), (100, 189625), (125, 151700), (148, 128125), (164, 115625), (185, 102500), (205, 92500), (250, 75850), (370, 51250), (410, 46250), (500, 37925), (625, 30340), (740, 25625), (820, 23125), (925, 20500), (1025, 18500), (1250, 15170), (1517, 12500), (1850, 10250), (2050, 9250), (2500, 7585), (3034, 6250), (3125, 6068), (3700, 5125), (4100, 4625)]