18834500

素因数分解:

$2^2\times 5^3\times {\mathrm{139}}^1\times {\mathrm{271}}^1$

素因数の和:429

約数の個数: 48

約数和(自身を含む): 41583360

約数和(自身を除く): 22748860

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 139, 250, 271, 278, 500, 542, 556, 695, 1084, 1355, 1390, 2710, 2780, 3475, 5420, 6775, 6950, 13550, 13900, 17375, 27100, 33875, 34750, 37669, 67750, 69500, 75338, 135500, 150676, 188345, 376690, 753380, 941725, 1883450, 3766900, 4708625, 9417250, 18834500]

約数ペア:

[(1, 18834500), (2, 9417250), (4, 4708625), (5, 3766900), (10, 1883450), (20, 941725), (25, 753380), (50, 376690), (100, 188345), (125, 150676), (139, 135500), (250, 75338), (271, 69500), (278, 67750), (500, 37669), (542, 34750), (556, 33875), (695, 27100), (1084, 17375), (1355, 13900), (1390, 13550), (2710, 6950), (2780, 6775), (3475, 5420)]