28018900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3079}}^1$

素因数の和:3113

約数の個数: 72

約数和(自身を含む): 74856320

約数和(自身を除く): 46837420

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 91, 100, 130, 140, 175, 182, 260, 325, 350, 364, 455, 650, 700, 910, 1300, 1820, 2275, 3079, 4550, 6158, 9100, 12316, 15395, 21553, 30790, 40027, 43106, 61580, 76975, 80054, 86212, 107765, 153950, 160108, 200135, 215530, 280189, 307900, 400270, 431060, 538825, 560378, 800540, 1000675, 1077650, 1120756, 1400945, 2001350, 2155300, 2801890, 4002700, 5603780, 7004725, 14009450, 28018900]

約数ペア:

[(1, 28018900), (2, 14009450), (4, 7004725), (5, 5603780), (7, 4002700), (10, 2801890), (13, 2155300), (14, 2001350), (20, 1400945), (25, 1120756), (26, 1077650), (28, 1000675), (35, 800540), (50, 560378), (52, 538825), (65, 431060), (70, 400270), (91, 307900), (100, 280189), (130, 215530), (140, 200135), (175, 160108), (182, 153950), (260, 107765), (325, 86212), (350, 80054), (364, 76975), (455, 61580), (650, 43106), (700, 40027), (910, 30790), (1300, 21553), (1820, 15395), (2275, 12316), (3079, 9100), (4550, 6158)]