1997285360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{1117}}^1$

素因数の和:1271

約数の個数: 160

約数和(自身を含む): 5536407552

約数和(自身を除く): 3539122192

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 103, 112, 124, 140, 155, 206, 217, 248, 280, 310, 412, 434, 496, 515, 560, 620, 721, 824, 868, 1030, 1085, 1117, 1240, 1442, 1648, 1736, 2060, 2170, 2234, 2480, 2884, 3193, 3472, 3605, 4120, 4340, 4468, 5585, 5768, 6386, 7210, 7819, 8240, 8680, 8936, 11170, 11536, 12772, 14420, 15638, 15965, 17360, 17872, 22340, 22351, 25544, 28840, 31276, 31930, 34627, 39095, 44680, 44702, 51088, 57680, 62552, 63860, 69254, 78190, 89360, 89404, 111755, 115051, 125104, 127720, 138508, 156380, 173135, 178808, 223510, 230102, 242389, 255440, 277016, 312760, 346270, 357616, 447020, 460204, 484778, 554032, 575255, 625520, 692540, 805357, 894040, 920408, 969556, 1150510, 1211945, 1385080, 1610714, 1788080, 1840816, 1939112, 2301020, 2423890, 2770160, 3221428, 3566581, 3878224, 4026785, 4602040, 4847780, 6442856, 7133162, 8053570, 9204080, 9695560, 12885712, 14266324, 16107140, 17832905, 19391120, 24966067, 28532648, 32214280, 35665810, 49932134, 57065296, 64428560, 71331620, 99864268, 124830335, 142663240, 199728536, 249660670, 285326480, 399457072, 499321340, 998642680, 1997285360]

約数ペア:

[(1, 1997285360), (2, 998642680), (4, 499321340), (5, 399457072), (7, 285326480), (8, 249660670), (10, 199728536), (14, 142663240), (16, 124830335), (20, 99864268), (28, 71331620), (31, 64428560), (35, 57065296), (40, 49932134), (56, 35665810), (62, 32214280), (70, 28532648), (80, 24966067), (103, 19391120), (112, 17832905), (124, 16107140), (140, 14266324), (155, 12885712), (206, 9695560), (217, 9204080), (248, 8053570), (280, 7133162), (310, 6442856), (412, 4847780), (434, 4602040), (496, 4026785), (515, 3878224), (560, 3566581), (620, 3221428), (721, 2770160), (824, 2423890), (868, 2301020), (1030, 1939112), (1085, 1840816), (1117, 1788080), (1240, 1610714), (1442, 1385080), (1648, 1211945), (1736, 1150510), (2060, 969556), (2170, 920408), (2234, 894040), (2480, 805357), (2884, 692540), (3193, 625520), (3472, 575255), (3605, 554032), (4120, 484778), (4340, 460204), (4468, 447020), (5585, 357616), (5768, 346270), (6386, 312760), (7210, 277016), (7819, 255440), (8240, 242389), (8680, 230102), (8936, 223510), (11170, 178808), (11536, 173135), (12772, 156380), (14420, 138508), (15638, 127720), (15965, 125104), (17360, 115051), (17872, 111755), (22340, 89404), (22351, 89360), (25544, 78190), (28840, 69254), (31276, 63860), (31930, 62552), (34627, 57680), (39095, 51088), (44680, 44702)]