205371320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{509}}^1$

素因数の和:669

約数の個数: 128

約数和(自身を含む): 581644800

約数和(自身を除く): 376273480

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 131, 140, 154, 220, 262, 280, 308, 385, 440, 509, 524, 616, 655, 770, 917, 1018, 1048, 1310, 1441, 1540, 1834, 2036, 2545, 2620, 2882, 3080, 3563, 3668, 4072, 4585, 5090, 5240, 5599, 5764, 7126, 7205, 7336, 9170, 10087, 10180, 11198, 11528, 14252, 14410, 17815, 18340, 20174, 20360, 22396, 27995, 28504, 28820, 35630, 36680, 39193, 40348, 44792, 50435, 55990, 57640, 66679, 71260, 78386, 80696, 100870, 111980, 133358, 142520, 156772, 195965, 201740, 223960, 266716, 313544, 333395, 391930, 403480, 466753, 533432, 666790, 733469, 783860, 933506, 1333580, 1466938, 1567720, 1867012, 2333765, 2667160, 2933876, 3667345, 3734024, 4667530, 5134283, 5867752, 7334690, 9335060, 10268566, 14669380, 18670120, 20537132, 25671415, 29338760, 41074264, 51342830, 102685660, 205371320]

約数ペア:

[(1, 205371320), (2, 102685660), (4, 51342830), (5, 41074264), (7, 29338760), (8, 25671415), (10, 20537132), (11, 18670120), (14, 14669380), (20, 10268566), (22, 9335060), (28, 7334690), (35, 5867752), (40, 5134283), (44, 4667530), (55, 3734024), (56, 3667345), (70, 2933876), (77, 2667160), (88, 2333765), (110, 1867012), (131, 1567720), (140, 1466938), (154, 1333580), (220, 933506), (262, 783860), (280, 733469), (308, 666790), (385, 533432), (440, 466753), (509, 403480), (524, 391930), (616, 333395), (655, 313544), (770, 266716), (917, 223960), (1018, 201740), (1048, 195965), (1310, 156772), (1441, 142520), (1540, 133358), (1834, 111980), (2036, 100870), (2545, 80696), (2620, 78386), (2882, 71260), (3080, 66679), (3563, 57640), (3668, 55990), (4072, 50435), (4585, 44792), (5090, 40348), (5240, 39193), (5599, 36680), (5764, 35630), (7126, 28820), (7205, 28504), (7336, 27995), (9170, 22396), (10087, 20360), (10180, 20174), (11198, 18340), (11528, 17815), (14252, 14410)]