676646440

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1\times {\mathrm{929}}^1$

素因数の和:1210

約数の個数: 64

約数和(自身を含む): 1546776000

約数和(自身を除く): 870129560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 139, 262, 278, 524, 556, 655, 695, 929, 1048, 1112, 1310, 1390, 1858, 2620, 2780, 3716, 4645, 5240, 5560, 7432, 9290, 18209, 18580, 36418, 37160, 72836, 91045, 121699, 129131, 145672, 182090, 243398, 258262, 364180, 486796, 516524, 608495, 645655, 728360, 973592, 1033048, 1216990, 1291310, 2433980, 2582620, 4867960, 5165240, 16916161, 33832322, 67664644, 84580805, 135329288, 169161610, 338323220, 676646440]

約数ペア:

[(1, 676646440), (2, 338323220), (4, 169161610), (5, 135329288), (8, 84580805), (10, 67664644), (20, 33832322), (40, 16916161), (131, 5165240), (139, 4867960), (262, 2582620), (278, 2433980), (524, 1291310), (556, 1216990), (655, 1033048), (695, 973592), (929, 728360), (1048, 645655), (1112, 608495), (1310, 516524), (1390, 486796), (1858, 364180), (2620, 258262), (2780, 243398), (3716, 182090), (4645, 145672), (5240, 129131), (5560, 121699), (7432, 91045), (9290, 72836), (18209, 37160), (18580, 36418)]