164490400

素因数分解:

$2^5\times 5^2\times {\mathrm{127}}^1\times {\mathrm{1619}}^1$

素因数の和:1766

約数の個数: 72

約数和(自身を含む): 404974080

約数和(自身を除く): 240483680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 127, 160, 200, 254, 400, 508, 635, 800, 1016, 1270, 1619, 2032, 2540, 3175, 3238, 4064, 5080, 6350, 6476, 8095, 10160, 12700, 12952, 16190, 20320, 25400, 25904, 32380, 40475, 50800, 51808, 64760, 80950, 101600, 129520, 161900, 205613, 259040, 323800, 411226, 647600, 822452, 1028065, 1295200, 1644904, 2056130, 3289808, 4112260, 5140325, 6579616, 8224520, 10280650, 16449040, 20561300, 32898080, 41122600, 82245200, 164490400]

約数ペア:

[(1, 164490400), (2, 82245200), (4, 41122600), (5, 32898080), (8, 20561300), (10, 16449040), (16, 10280650), (20, 8224520), (25, 6579616), (32, 5140325), (40, 4112260), (50, 3289808), (80, 2056130), (100, 1644904), (127, 1295200), (160, 1028065), (200, 822452), (254, 647600), (400, 411226), (508, 323800), (635, 259040), (800, 205613), (1016, 161900), (1270, 129520), (1619, 101600), (2032, 80950), (2540, 64760), (3175, 51808), (3238, 50800), (4064, 40475), (5080, 32380), (6350, 25904), (6476, 25400), (8095, 20320), (10160, 16190), (12700, 12952)]