1820472660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1\times {\mathrm{787}}^1$

素因数の和:1054

約数の個数: 144

約数和(自身を含む): 5637969792

約数和(自身を除く): 3817497132

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 181, 213, 284, 355, 362, 426, 543, 639, 710, 724, 787, 852, 905, 1065, 1086, 1278, 1420, 1574, 1629, 1810, 2130, 2172, 2361, 2556, 2715, 3148, 3195, 3258, 3620, 3935, 4260, 4722, 5430, 6390, 6516, 7083, 7870, 8145, 9444, 10860, 11805, 12780, 12851, 14166, 15740, 16290, 23610, 25702, 28332, 32580, 35415, 38553, 47220, 51404, 55877, 64255, 70830, 77106, 111754, 115659, 128510, 141660, 142447, 154212, 167631, 192765, 223508, 231318, 257020, 279385, 284894, 335262, 385530, 427341, 462636, 502893, 558770, 569788, 578295, 670524, 712235, 771060, 838155, 854682, 1005786, 1117540, 1156590, 1282023, 1424470, 1676310, 1709364, 2011572, 2136705, 2313180, 2514465, 2564046, 2848940, 3352620, 4273410, 5028930, 5128092, 6410115, 8546820, 10057860, 10113737, 12820230, 20227474, 25640460, 30341211, 40454948, 50568685, 60682422, 91023633, 101137370, 121364844, 151706055, 182047266, 202274740, 303412110, 364094532, 455118165, 606824220, 910236330, 1820472660]

約数ペア:

[(1, 1820472660), (2, 910236330), (3, 606824220), (4, 455118165), (5, 364094532), (6, 303412110), (9, 202274740), (10, 182047266), (12, 151706055), (15, 121364844), (18, 101137370), (20, 91023633), (30, 60682422), (36, 50568685), (45, 40454948), (60, 30341211), (71, 25640460), (90, 20227474), (142, 12820230), (180, 10113737), (181, 10057860), (213, 8546820), (284, 6410115), (355, 5128092), (362, 5028930), (426, 4273410), (543, 3352620), (639, 2848940), (710, 2564046), (724, 2514465), (787, 2313180), (852, 2136705), (905, 2011572), (1065, 1709364), (1086, 1676310), (1278, 1424470), (1420, 1282023), (1574, 1156590), (1629, 1117540), (1810, 1005786), (2130, 854682), (2172, 838155), (2361, 771060), (2556, 712235), (2715, 670524), (3148, 578295), (3195, 569788), (3258, 558770), (3620, 502893), (3935, 462636), (4260, 427341), (4722, 385530), (5430, 335262), (6390, 284894), (6516, 279385), (7083, 257020), (7870, 231318), (8145, 223508), (9444, 192765), (10860, 167631), (11805, 154212), (12780, 142447), (12851, 141660), (14166, 128510), (15740, 115659), (16290, 111754), (23610, 77106), (25702, 70830), (28332, 64255), (32580, 55877), (35415, 51404), (38553, 47220)]