18674425

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:226

約数の個数: 48

約数和(自身を含む): 29462400

約数和(自身を除く): 10787975

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 89, 109, 175, 275, 385, 445, 545, 623, 763, 979, 1199, 1925, 2225, 2725, 3115, 3815, 4895, 5995, 6853, 8393, 9701, 15575, 19075, 24475, 29975, 34265, 41965, 48505, 67907, 106711, 171325, 209825, 242525, 339535, 533555, 746977, 1697675, 2667775, 3734885, 18674425]

約数ペア:

[(1, 18674425), (5, 3734885), (7, 2667775), (11, 1697675), (25, 746977), (35, 533555), (55, 339535), (77, 242525), (89, 209825), (109, 171325), (175, 106711), (275, 67907), (385, 48505), (445, 41965), (545, 34265), (623, 29975), (763, 24475), (979, 19075), (1199, 15575), (1925, 9701), (2225, 8393), (2725, 6853), (3115, 5995), (3815, 4895)]