215983820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{211}}^1$

素因数の和:391

約数の個数: 96

約数和(自身を含む): 510590976

約数和(自身を除く): 294607156

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 127, 130, 155, 211, 254, 260, 310, 403, 422, 508, 620, 635, 806, 844, 1055, 1270, 1612, 1651, 2015, 2110, 2540, 2743, 3302, 3937, 4030, 4220, 5486, 6541, 6604, 7874, 8060, 8255, 10972, 13082, 13715, 15748, 16510, 19685, 26164, 26797, 27430, 32705, 33020, 39370, 51181, 53594, 54860, 65410, 78740, 85033, 102362, 107188, 130820, 133985, 170066, 204724, 255905, 267970, 340132, 348361, 425165, 511810, 535940, 696722, 830707, 850330, 1023620, 1393444, 1661414, 1700660, 1741805, 3322828, 3483610, 4153535, 6967220, 8307070, 10799191, 16614140, 21598382, 43196764, 53995955, 107991910, 215983820]

約数ペア:

[(1, 215983820), (2, 107991910), (4, 53995955), (5, 43196764), (10, 21598382), (13, 16614140), (20, 10799191), (26, 8307070), (31, 6967220), (52, 4153535), (62, 3483610), (65, 3322828), (124, 1741805), (127, 1700660), (130, 1661414), (155, 1393444), (211, 1023620), (254, 850330), (260, 830707), (310, 696722), (403, 535940), (422, 511810), (508, 425165), (620, 348361), (635, 340132), (806, 267970), (844, 255905), (1055, 204724), (1270, 170066), (1612, 133985), (1651, 130820), (2015, 107188), (2110, 102362), (2540, 85033), (2743, 78740), (3302, 65410), (3937, 54860), (4030, 53594), (4220, 51181), (5486, 39370), (6541, 33020), (6604, 32705), (7874, 27430), (8060, 26797), (8255, 26164), (10972, 19685), (13082, 16510), (13715, 15748)]