423502420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{139}}^1\times {\mathrm{1259}}^1$

素因数の和:1429

約数の個数: 72

約数和(自身を含む): 985370400

約数和(自身を除く): 561867980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 139, 220, 242, 278, 484, 556, 605, 695, 1210, 1259, 1390, 1529, 2420, 2518, 2780, 3058, 5036, 6116, 6295, 7645, 12590, 13849, 15290, 16819, 25180, 27698, 30580, 33638, 55396, 67276, 69245, 84095, 138490, 152339, 168190, 175001, 276980, 304678, 336380, 350002, 609356, 700004, 761695, 875005, 1523390, 1750010, 1925011, 3046780, 3500020, 3850022, 7700044, 9625055, 19250110, 21175121, 38500220, 42350242, 84700484, 105875605, 211751210, 423502420]

約数ペア:

[(1, 423502420), (2, 211751210), (4, 105875605), (5, 84700484), (10, 42350242), (11, 38500220), (20, 21175121), (22, 19250110), (44, 9625055), (55, 7700044), (110, 3850022), (121, 3500020), (139, 3046780), (220, 1925011), (242, 1750010), (278, 1523390), (484, 875005), (556, 761695), (605, 700004), (695, 609356), (1210, 350002), (1259, 336380), (1390, 304678), (1529, 276980), (2420, 175001), (2518, 168190), (2780, 152339), (3058, 138490), (5036, 84095), (6116, 69245), (6295, 67276), (7645, 55396), (12590, 33638), (13849, 30580), (15290, 27698), (16819, 25180)]