18401200

素因数分解:

$2^4\times 5^2\times {\mathrm{179}}^1\times {\mathrm{257}}^1$

素因数の和:454

約数の個数: 60

約数和(自身を含む): 44628840

約数和(自身を除く): 26227640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 179, 200, 257, 358, 400, 514, 716, 895, 1028, 1285, 1432, 1790, 2056, 2570, 2864, 3580, 4112, 4475, 5140, 6425, 7160, 8950, 10280, 12850, 14320, 17900, 20560, 25700, 35800, 46003, 51400, 71600, 92006, 102800, 184012, 230015, 368024, 460030, 736048, 920060, 1150075, 1840120, 2300150, 3680240, 4600300, 9200600, 18401200]

約数ペア:

[(1, 18401200), (2, 9200600), (4, 4600300), (5, 3680240), (8, 2300150), (10, 1840120), (16, 1150075), (20, 920060), (25, 736048), (40, 460030), (50, 368024), (80, 230015), (100, 184012), (179, 102800), (200, 92006), (257, 71600), (358, 51400), (400, 46003), (514, 35800), (716, 25700), (895, 20560), (1028, 17900), (1285, 14320), (1432, 12850), (1790, 10280), (2056, 8950), (2570, 7160), (2864, 6425), (3580, 5140), (4112, 4475)]