320702901080

素因数分解:

$2^3\times 5^1\times {\mathrm{653}}^1\times {\mathrm{907}}^1\times {\mathrm{13537}}^1$

素因数の和:15108

約数の個数: 64

約数和(自身を含む): 723536785440

約数和(自身を除く): 402833884360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 653, 907, 1306, 1814, 2612, 3265, 3628, 4535, 5224, 6530, 7256, 9070, 13060, 13537, 18140, 26120, 27074, 36280, 54148, 67685, 108296, 135370, 270740, 541480, 592271, 1184542, 2369084, 2961355, 4738168, 5922710, 8839661, 11845420, 12278059, 17679322, 23690840, 24556118, 35358644, 44198305, 49112236, 61390295, 70717288, 88396610, 98224472, 122780590, 176793220, 245561180, 353586440, 491122360, 8017572527, 16035145054, 32070290108, 40087862635, 64140580216, 80175725270, 160351450540, 320702901080]

約数ペア:

[(1, 320702901080), (2, 160351450540), (4, 80175725270), (5, 64140580216), (8, 40087862635), (10, 32070290108), (20, 16035145054), (40, 8017572527), (653, 491122360), (907, 353586440), (1306, 245561180), (1814, 176793220), (2612, 122780590), (3265, 98224472), (3628, 88396610), (4535, 70717288), (5224, 61390295), (6530, 49112236), (7256, 44198305), (9070, 35358644), (13060, 24556118), (13537, 23690840), (18140, 17679322), (26120, 12278059), (27074, 11845420), (36280, 8839661), (54148, 5922710), (67685, 4738168), (108296, 2961355), (135370, 2369084), (270740, 1184542), (541480, 592271)]