25987920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:553

約数の個数: 160

約数和(自身を含む): 95232000

約数和(自身を除く): 69244080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 35, 40, 42, 48, 56, 60, 62, 70, 80, 84, 93, 105, 112, 120, 124, 140, 155, 168, 186, 210, 217, 240, 248, 280, 310, 336, 372, 420, 434, 465, 496, 499, 560, 620, 651, 744, 840, 868, 930, 998, 1085, 1240, 1302, 1488, 1497, 1680, 1736, 1860, 1996, 2170, 2480, 2495, 2604, 2994, 3255, 3472, 3493, 3720, 3992, 4340, 4990, 5208, 5988, 6510, 6986, 7440, 7485, 7984, 8680, 9980, 10416, 10479, 11976, 13020, 13972, 14970, 15469, 17360, 17465, 19960, 20958, 23952, 26040, 27944, 29940, 30938, 34930, 39920, 41916, 46407, 52080, 52395, 55888, 59880, 61876, 69860, 77345, 83832, 92814, 104790, 108283, 119760, 123752, 139720, 154690, 167664, 185628, 209580, 216566, 232035, 247504, 279440, 309380, 324849, 371256, 419160, 433132, 464070, 541415, 618760, 649698, 742512, 838320, 866264, 928140, 1082830, 1237520, 1299396, 1624245, 1732528, 1856280, 2165660, 2598792, 3248490, 3712560, 4331320, 5197584, 6496980, 8662640, 12993960, 25987920]

約数ペア:

[(1, 25987920), (2, 12993960), (3, 8662640), (4, 6496980), (5, 5197584), (6, 4331320), (7, 3712560), (8, 3248490), (10, 2598792), (12, 2165660), (14, 1856280), (15, 1732528), (16, 1624245), (20, 1299396), (21, 1237520), (24, 1082830), (28, 928140), (30, 866264), (31, 838320), (35, 742512), (40, 649698), (42, 618760), (48, 541415), (56, 464070), (60, 433132), (62, 419160), (70, 371256), (80, 324849), (84, 309380), (93, 279440), (105, 247504), (112, 232035), (120, 216566), (124, 209580), (140, 185628), (155, 167664), (168, 154690), (186, 139720), (210, 123752), (217, 119760), (240, 108283), (248, 104790), (280, 92814), (310, 83832), (336, 77345), (372, 69860), (420, 61876), (434, 59880), (465, 55888), (496, 52395), (499, 52080), (560, 46407), (620, 41916), (651, 39920), (744, 34930), (840, 30938), (868, 29940), (930, 27944), (998, 26040), (1085, 23952), (1240, 20958), (1302, 19960), (1488, 17465), (1497, 17360), (1680, 15469), (1736, 14970), (1860, 13972), (1996, 13020), (2170, 11976), (2480, 10479), (2495, 10416), (2604, 9980), (2994, 8680), (3255, 7984), (3472, 7485), (3493, 7440), (3720, 6986), (3992, 6510), (4340, 5988), (4990, 5208)]