20146280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1$

素因数の和:271

約数の個数: 128

約数和(自身を含む): 58613760

約数和(自身を除く): 38467480

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 31, 35, 40, 44, 55, 56, 62, 70, 77, 88, 110, 124, 140, 154, 155, 211, 217, 220, 248, 280, 308, 310, 341, 385, 422, 434, 440, 616, 620, 682, 770, 844, 868, 1055, 1085, 1240, 1364, 1477, 1540, 1688, 1705, 1736, 2110, 2170, 2321, 2387, 2728, 2954, 3080, 3410, 4220, 4340, 4642, 4774, 5908, 6541, 6820, 7385, 8440, 8680, 9284, 9548, 11605, 11816, 11935, 13082, 13640, 14770, 16247, 18568, 19096, 23210, 23870, 26164, 29540, 32494, 32705, 45787, 46420, 47740, 52328, 59080, 64988, 65410, 71951, 81235, 91574, 92840, 95480, 129976, 130820, 143902, 162470, 183148, 228935, 261640, 287804, 324940, 359755, 366296, 457870, 503657, 575608, 649880, 719510, 915740, 1007314, 1439020, 1831480, 2014628, 2518285, 2878040, 4029256, 5036570, 10073140, 20146280]

約数ペア:

[(1, 20146280), (2, 10073140), (4, 5036570), (5, 4029256), (7, 2878040), (8, 2518285), (10, 2014628), (11, 1831480), (14, 1439020), (20, 1007314), (22, 915740), (28, 719510), (31, 649880), (35, 575608), (40, 503657), (44, 457870), (55, 366296), (56, 359755), (62, 324940), (70, 287804), (77, 261640), (88, 228935), (110, 183148), (124, 162470), (140, 143902), (154, 130820), (155, 129976), (211, 95480), (217, 92840), (220, 91574), (248, 81235), (280, 71951), (308, 65410), (310, 64988), (341, 59080), (385, 52328), (422, 47740), (434, 46420), (440, 45787), (616, 32705), (620, 32494), (682, 29540), (770, 26164), (844, 23870), (868, 23210), (1055, 19096), (1085, 18568), (1240, 16247), (1364, 14770), (1477, 13640), (1540, 13082), (1688, 11935), (1705, 11816), (1736, 11605), (2110, 9548), (2170, 9284), (2321, 8680), (2387, 8440), (2728, 7385), (2954, 6820), (3080, 6541), (3410, 5908), (4220, 4774), (4340, 4642)]