420000560

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{307}}^1\times {\mathrm{349}}^1$

素因数の和:683

約数の個数: 120

約数和(自身を含む): 1142895600

約数和(自身を除く): 722895040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 307, 349, 392, 490, 560, 614, 698, 784, 980, 1228, 1396, 1535, 1745, 1960, 2149, 2443, 2456, 2792, 3070, 3490, 3920, 4298, 4886, 4912, 5584, 6140, 6980, 8596, 9772, 10745, 12215, 12280, 13960, 15043, 17101, 17192, 19544, 21490, 24430, 24560, 27920, 30086, 34202, 34384, 39088, 42980, 48860, 60172, 68404, 75215, 85505, 85960, 97720, 107143, 120344, 136808, 150430, 171010, 171920, 195440, 214286, 240688, 273616, 300860, 342020, 428572, 535715, 601720, 684040, 750001, 857144, 1071430, 1203440, 1368080, 1500002, 1714288, 2142860, 3000004, 3750005, 4285720, 5250007, 6000008, 7500010, 8571440, 10500014, 12000016, 15000020, 21000028, 26250035, 30000040, 42000056, 52500070, 60000080, 84000112, 105000140, 210000280, 420000560]

約数ペア:

[(1, 420000560), (2, 210000280), (4, 105000140), (5, 84000112), (7, 60000080), (8, 52500070), (10, 42000056), (14, 30000040), (16, 26250035), (20, 21000028), (28, 15000020), (35, 12000016), (40, 10500014), (49, 8571440), (56, 7500010), (70, 6000008), (80, 5250007), (98, 4285720), (112, 3750005), (140, 3000004), (196, 2142860), (245, 1714288), (280, 1500002), (307, 1368080), (349, 1203440), (392, 1071430), (490, 857144), (560, 750001), (614, 684040), (698, 601720), (784, 535715), (980, 428572), (1228, 342020), (1396, 300860), (1535, 273616), (1745, 240688), (1960, 214286), (2149, 195440), (2443, 171920), (2456, 171010), (2792, 150430), (3070, 136808), (3490, 120344), (3920, 107143), (4298, 97720), (4886, 85960), (4912, 85505), (5584, 75215), (6140, 68404), (6980, 60172), (8596, 48860), (9772, 42980), (10745, 39088), (12215, 34384), (12280, 34202), (13960, 30086), (15043, 27920), (17101, 24560), (17192, 24430), (19544, 21490)]