257204760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{1093}}^1$

素因数の和:1197

約数の個数: 128

約数和(自身を含む): 808159680

約数和(自身を除く): 550954920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 37, 40, 53, 60, 74, 106, 111, 120, 148, 159, 185, 212, 222, 265, 296, 318, 370, 424, 444, 530, 555, 636, 740, 795, 888, 1060, 1093, 1110, 1272, 1480, 1590, 1961, 2120, 2186, 2220, 3180, 3279, 3922, 4372, 4440, 5465, 5883, 6360, 6558, 7844, 8744, 9805, 10930, 11766, 13116, 15688, 16395, 19610, 21860, 23532, 26232, 29415, 32790, 39220, 40441, 43720, 47064, 57929, 58830, 65580, 78440, 80882, 115858, 117660, 121323, 131160, 161764, 173787, 202205, 231716, 235320, 242646, 289645, 323528, 347574, 404410, 463432, 485292, 579290, 606615, 695148, 808820, 868935, 970584, 1158580, 1213230, 1390296, 1617640, 1737870, 2143373, 2317160, 2426460, 3475740, 4286746, 4852920, 6430119, 6951480, 8573492, 10716865, 12860238, 17146984, 21433730, 25720476, 32150595, 42867460, 51440952, 64301190, 85734920, 128602380, 257204760]

約数ペア:

[(1, 257204760), (2, 128602380), (3, 85734920), (4, 64301190), (5, 51440952), (6, 42867460), (8, 32150595), (10, 25720476), (12, 21433730), (15, 17146984), (20, 12860238), (24, 10716865), (30, 8573492), (37, 6951480), (40, 6430119), (53, 4852920), (60, 4286746), (74, 3475740), (106, 2426460), (111, 2317160), (120, 2143373), (148, 1737870), (159, 1617640), (185, 1390296), (212, 1213230), (222, 1158580), (265, 970584), (296, 868935), (318, 808820), (370, 695148), (424, 606615), (444, 579290), (530, 485292), (555, 463432), (636, 404410), (740, 347574), (795, 323528), (888, 289645), (1060, 242646), (1093, 235320), (1110, 231716), (1272, 202205), (1480, 173787), (1590, 161764), (1961, 131160), (2120, 121323), (2186, 117660), (2220, 115858), (3180, 80882), (3279, 78440), (3922, 65580), (4372, 58830), (4440, 57929), (5465, 47064), (5883, 43720), (6360, 40441), (6558, 39220), (7844, 32790), (8744, 29415), (9805, 26232), (10930, 23532), (11766, 21860), (13116, 19610), (15688, 16395)]