28190800

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:221

約数の個数: 120

約数和(自身を含む): 76111200

約数和(自身を除く): 47920400

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 43, 44, 50, 55, 80, 86, 88, 100, 110, 149, 172, 176, 200, 215, 220, 275, 298, 344, 400, 430, 440, 473, 550, 596, 688, 745, 860, 880, 946, 1075, 1100, 1192, 1490, 1639, 1720, 1892, 2150, 2200, 2365, 2384, 2980, 3278, 3440, 3725, 3784, 4300, 4400, 4730, 5960, 6407, 6556, 7450, 7568, 8195, 8600, 9460, 11825, 11920, 12814, 13112, 14900, 16390, 17200, 18920, 23650, 25628, 26224, 29800, 32035, 32780, 37840, 40975, 47300, 51256, 59600, 64070, 65560, 70477, 81950, 94600, 102512, 128140, 131120, 140954, 160175, 163900, 189200, 256280, 281908, 320350, 327800, 352385, 512560, 563816, 640700, 655600, 704770, 1127632, 1281400, 1409540, 1761925, 2562800, 2819080, 3523850, 5638160, 7047700, 14095400, 28190800]

約数ペア:

[(1, 28190800), (2, 14095400), (4, 7047700), (5, 5638160), (8, 3523850), (10, 2819080), (11, 2562800), (16, 1761925), (20, 1409540), (22, 1281400), (25, 1127632), (40, 704770), (43, 655600), (44, 640700), (50, 563816), (55, 512560), (80, 352385), (86, 327800), (88, 320350), (100, 281908), (110, 256280), (149, 189200), (172, 163900), (176, 160175), (200, 140954), (215, 131120), (220, 128140), (275, 102512), (298, 94600), (344, 81950), (400, 70477), (430, 65560), (440, 64070), (473, 59600), (550, 51256), (596, 47300), (688, 40975), (745, 37840), (860, 32780), (880, 32035), (946, 29800), (1075, 26224), (1100, 25628), (1192, 23650), (1490, 18920), (1639, 17200), (1720, 16390), (1892, 14900), (2150, 13112), (2200, 12814), (2365, 11920), (2384, 11825), (2980, 9460), (3278, 8600), (3440, 8195), (3725, 7568), (3784, 7450), (4300, 6556), (4400, 6407), (4730, 5960)]