28400240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{547}}^1$

素因数の和:630

約数の個数: 80

約数和(自身を含む): 73388160

約数和(自身を除く): 44987920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 59, 80, 88, 110, 118, 176, 220, 236, 295, 440, 472, 547, 590, 649, 880, 944, 1094, 1180, 1298, 2188, 2360, 2596, 2735, 3245, 4376, 4720, 5192, 5470, 6017, 6490, 8752, 10384, 10940, 12034, 12980, 21880, 24068, 25960, 30085, 32273, 43760, 48136, 51920, 60170, 64546, 96272, 120340, 129092, 161365, 240680, 258184, 322730, 355003, 481360, 516368, 645460, 710006, 1290920, 1420012, 1775015, 2581840, 2840024, 3550030, 5680048, 7100060, 14200120, 28400240]

約数ペア:

[(1, 28400240), (2, 14200120), (4, 7100060), (5, 5680048), (8, 3550030), (10, 2840024), (11, 2581840), (16, 1775015), (20, 1420012), (22, 1290920), (40, 710006), (44, 645460), (55, 516368), (59, 481360), (80, 355003), (88, 322730), (110, 258184), (118, 240680), (176, 161365), (220, 129092), (236, 120340), (295, 96272), (440, 64546), (472, 60170), (547, 51920), (590, 48136), (649, 43760), (880, 32273), (944, 30085), (1094, 25960), (1180, 24068), (1298, 21880), (2188, 12980), (2360, 12034), (2596, 10940), (2735, 10384), (3245, 8752), (4376, 6490), (4720, 6017), (5192, 5470)]