205101720

素因数分解:

$2^3\times 3^5\times 5^1\times {\mathrm{21101}}^1$

素因数の和:21127

約数の個数: 96

約数和(自身を含む): 691301520

約数和(自身を除く): 486199800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 243, 270, 324, 360, 405, 486, 540, 648, 810, 972, 1080, 1215, 1620, 1944, 2430, 3240, 4860, 9720, 21101, 42202, 63303, 84404, 105505, 126606, 168808, 189909, 211010, 253212, 316515, 379818, 422020, 506424, 569727, 633030, 759636, 844040, 949545, 1139454, 1266060, 1519272, 1709181, 1899090, 2278908, 2532120, 2848635, 3418362, 3798180, 4557816, 5127543, 5697270, 6836724, 7596360, 8545905, 10255086, 11394540, 13673448, 17091810, 20510172, 22789080, 25637715, 34183620, 41020344, 51275430, 68367240, 102550860, 205101720]

約数ペア:

[(1, 205101720), (2, 102550860), (3, 68367240), (4, 51275430), (5, 41020344), (6, 34183620), (8, 25637715), (9, 22789080), (10, 20510172), (12, 17091810), (15, 13673448), (18, 11394540), (20, 10255086), (24, 8545905), (27, 7596360), (30, 6836724), (36, 5697270), (40, 5127543), (45, 4557816), (54, 3798180), (60, 3418362), (72, 2848635), (81, 2532120), (90, 2278908), (108, 1899090), (120, 1709181), (135, 1519272), (162, 1266060), (180, 1139454), (216, 949545), (243, 844040), (270, 759636), (324, 633030), (360, 569727), (405, 506424), (486, 422020), (540, 379818), (648, 316515), (810, 253212), (972, 211010), (1080, 189909), (1215, 168808), (1620, 126606), (1944, 105505), (2430, 84404), (3240, 63303), (4860, 42202), (9720, 21101)]