18845520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:213

約数の個数: 160

約数和(自身を含む): 64281600

約数和(自身を除く): 45436080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 31, 34, 40, 48, 51, 60, 62, 68, 80, 85, 93, 102, 120, 124, 136, 149, 155, 170, 186, 204, 240, 248, 255, 272, 298, 310, 340, 372, 408, 447, 465, 496, 510, 527, 596, 620, 680, 744, 745, 816, 894, 930, 1020, 1054, 1192, 1240, 1360, 1488, 1490, 1581, 1788, 1860, 2040, 2108, 2235, 2384, 2480, 2533, 2635, 2980, 3162, 3576, 3720, 4080, 4216, 4470, 4619, 5066, 5270, 5960, 6324, 7152, 7440, 7599, 7905, 8432, 8940, 9238, 10132, 10540, 11920, 12648, 12665, 13857, 15198, 15810, 17880, 18476, 20264, 21080, 23095, 25296, 25330, 27714, 30396, 31620, 35760, 36952, 37995, 40528, 42160, 46190, 50660, 55428, 60792, 63240, 69285, 73904, 75990, 78523, 92380, 101320, 110856, 121584, 126480, 138570, 151980, 157046, 184760, 202640, 221712, 235569, 277140, 303960, 314092, 369520, 392615, 471138, 554280, 607920, 628184, 785230, 942276, 1108560, 1177845, 1256368, 1570460, 1884552, 2355690, 3140920, 3769104, 4711380, 6281840, 9422760, 18845520]

約数ペア:

[(1, 18845520), (2, 9422760), (3, 6281840), (4, 4711380), (5, 3769104), (6, 3140920), (8, 2355690), (10, 1884552), (12, 1570460), (15, 1256368), (16, 1177845), (17, 1108560), (20, 942276), (24, 785230), (30, 628184), (31, 607920), (34, 554280), (40, 471138), (48, 392615), (51, 369520), (60, 314092), (62, 303960), (68, 277140), (80, 235569), (85, 221712), (93, 202640), (102, 184760), (120, 157046), (124, 151980), (136, 138570), (149, 126480), (155, 121584), (170, 110856), (186, 101320), (204, 92380), (240, 78523), (248, 75990), (255, 73904), (272, 69285), (298, 63240), (310, 60792), (340, 55428), (372, 50660), (408, 46190), (447, 42160), (465, 40528), (496, 37995), (510, 36952), (527, 35760), (596, 31620), (620, 30396), (680, 27714), (744, 25330), (745, 25296), (816, 23095), (894, 21080), (930, 20264), (1020, 18476), (1054, 17880), (1192, 15810), (1240, 15198), (1360, 13857), (1488, 12665), (1490, 12648), (1581, 11920), (1788, 10540), (1860, 10132), (2040, 9238), (2108, 8940), (2235, 8432), (2384, 7905), (2480, 7599), (2533, 7440), (2635, 7152), (2980, 6324), (3162, 5960), (3576, 5270), (3720, 5066), (4080, 4619), (4216, 4470)]