20155604920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1117273}}^1$

素因数の和:1117336

約数の個数: 64

約数和(自身を含む): 50679548640

約数和(自身を除く): 30523943720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 41, 44, 55, 82, 88, 110, 164, 205, 220, 328, 410, 440, 451, 820, 902, 1640, 1804, 2255, 3608, 4510, 9020, 18040, 1117273, 2234546, 4469092, 5586365, 8938184, 11172730, 12290003, 22345460, 24580006, 44690920, 45808193, 49160012, 61450015, 91616386, 98320024, 122900030, 183232772, 229040965, 245800060, 366465544, 458081930, 491600120, 503890123, 916163860, 1007780246, 1832327720, 2015560492, 2519450615, 4031120984, 5038901230, 10077802460, 20155604920]

約数ペア:

[(1, 20155604920), (2, 10077802460), (4, 5038901230), (5, 4031120984), (8, 2519450615), (10, 2015560492), (11, 1832327720), (20, 1007780246), (22, 916163860), (40, 503890123), (41, 491600120), (44, 458081930), (55, 366465544), (82, 245800060), (88, 229040965), (110, 183232772), (164, 122900030), (205, 98320024), (220, 91616386), (328, 61450015), (410, 49160012), (440, 45808193), (451, 44690920), (820, 24580006), (902, 22345460), (1640, 12290003), (1804, 11172730), (2255, 8938184), (3608, 5586365), (4510, 4469092), (9020, 2234546), (18040, 1117273)]