19602440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1$

素因数の和:207

約数の個数: 128

約数和(自身を含む): 54432000

約数和(自身を除く): 34829560

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 23, 26, 40, 44, 46, 52, 55, 65, 88, 92, 104, 110, 115, 130, 143, 149, 184, 220, 230, 253, 260, 286, 298, 299, 440, 460, 506, 520, 572, 596, 598, 715, 745, 920, 1012, 1144, 1192, 1196, 1265, 1430, 1490, 1495, 1639, 1937, 2024, 2392, 2530, 2860, 2980, 2990, 3278, 3289, 3427, 3874, 5060, 5720, 5960, 5980, 6556, 6578, 6854, 7748, 8195, 9685, 10120, 11960, 13112, 13156, 13708, 15496, 16390, 16445, 17135, 19370, 21307, 26312, 27416, 32780, 32890, 34270, 37697, 38740, 42614, 44551, 65560, 65780, 68540, 75394, 77480, 85228, 89102, 106535, 131560, 137080, 150788, 170456, 178204, 188485, 213070, 222755, 301576, 356408, 376970, 426140, 445510, 490061, 753940, 852280, 891020, 980122, 1507880, 1782040, 1960244, 2450305, 3920488, 4900610, 9801220, 19602440]

約数ペア:

[(1, 19602440), (2, 9801220), (4, 4900610), (5, 3920488), (8, 2450305), (10, 1960244), (11, 1782040), (13, 1507880), (20, 980122), (22, 891020), (23, 852280), (26, 753940), (40, 490061), (44, 445510), (46, 426140), (52, 376970), (55, 356408), (65, 301576), (88, 222755), (92, 213070), (104, 188485), (110, 178204), (115, 170456), (130, 150788), (143, 137080), (149, 131560), (184, 106535), (220, 89102), (230, 85228), (253, 77480), (260, 75394), (286, 68540), (298, 65780), (299, 65560), (440, 44551), (460, 42614), (506, 38740), (520, 37697), (572, 34270), (596, 32890), (598, 32780), (715, 27416), (745, 26312), (920, 21307), (1012, 19370), (1144, 17135), (1192, 16445), (1196, 16390), (1265, 15496), (1430, 13708), (1490, 13156), (1495, 13112), (1639, 11960), (1937, 10120), (2024, 9685), (2392, 8195), (2530, 7748), (2860, 6854), (2980, 6578), (2990, 6556), (3278, 5980), (3289, 5960), (3427, 5720), (3874, 5060)]