28511150

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:293

約数の個数: 48

約数和(自身を含む): 55242000

約数和(自身を除く): 26730850

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 89, 149, 178, 215, 298, 430, 445, 745, 890, 1075, 1490, 2150, 2225, 3725, 3827, 4450, 6407, 7450, 7654, 12814, 13261, 19135, 26522, 32035, 38270, 64070, 66305, 95675, 132610, 160175, 191350, 320350, 331525, 570223, 663050, 1140446, 2851115, 5702230, 14255575, 28511150]

約数ペア:

[(1, 28511150), (2, 14255575), (5, 5702230), (10, 2851115), (25, 1140446), (43, 663050), (50, 570223), (86, 331525), (89, 320350), (149, 191350), (178, 160175), (215, 132610), (298, 95675), (430, 66305), (445, 64070), (745, 38270), (890, 32035), (1075, 26522), (1490, 19135), (2150, 13261), (2225, 12814), (3725, 7654), (3827, 7450), (4450, 6407)]