1285127780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1\times {\mathrm{151}}^1$

素因数の和:405

約数の個数: 96

約数和(自身を含む): 2837866752

約数和(自身を除く): 1552738972

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 97, 107, 151, 164, 194, 205, 214, 302, 388, 410, 428, 485, 535, 604, 755, 820, 970, 1070, 1510, 1940, 2140, 3020, 3977, 4387, 6191, 7954, 8774, 10379, 12382, 14647, 15908, 16157, 17548, 19885, 20758, 21935, 24764, 29294, 30955, 32314, 39770, 41516, 43870, 51895, 58588, 61910, 64628, 73235, 79540, 80785, 87740, 103790, 123820, 146470, 161570, 207580, 292940, 323140, 425539, 600527, 662437, 851078, 1201054, 1324874, 1567229, 1702156, 2127695, 2402108, 2649748, 3002635, 3134458, 3312185, 4255390, 6005270, 6268916, 6624370, 7836145, 8510780, 12010540, 13248740, 15672290, 31344580, 64256389, 128512778, 257025556, 321281945, 642563890, 1285127780]

約数ペア:

[(1, 1285127780), (2, 642563890), (4, 321281945), (5, 257025556), (10, 128512778), (20, 64256389), (41, 31344580), (82, 15672290), (97, 13248740), (107, 12010540), (151, 8510780), (164, 7836145), (194, 6624370), (205, 6268916), (214, 6005270), (302, 4255390), (388, 3312185), (410, 3134458), (428, 3002635), (485, 2649748), (535, 2402108), (604, 2127695), (755, 1702156), (820, 1567229), (970, 1324874), (1070, 1201054), (1510, 851078), (1940, 662437), (2140, 600527), (3020, 425539), (3977, 323140), (4387, 292940), (6191, 207580), (7954, 161570), (8774, 146470), (10379, 123820), (12382, 103790), (14647, 87740), (15908, 80785), (16157, 79540), (17548, 73235), (19885, 64628), (20758, 61910), (21935, 58588), (24764, 51895), (29294, 43870), (30955, 41516), (32314, 39770)]