20798040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{263}}^1\times {\mathrm{659}}^1$

素因数の和:936

約数の個数: 64

約数和(自身を含む): 62726400

約数和(自身を除く): 41928360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 263, 526, 659, 789, 1052, 1315, 1318, 1578, 1977, 2104, 2630, 2636, 3156, 3295, 3945, 3954, 5260, 5272, 6312, 6590, 7890, 7908, 9885, 10520, 13180, 15780, 15816, 19770, 26360, 31560, 39540, 79080, 173317, 346634, 519951, 693268, 866585, 1039902, 1386536, 1733170, 2079804, 2599755, 3466340, 4159608, 5199510, 6932680, 10399020, 20798040]

約数ペア:

[(1, 20798040), (2, 10399020), (3, 6932680), (4, 5199510), (5, 4159608), (6, 3466340), (8, 2599755), (10, 2079804), (12, 1733170), (15, 1386536), (20, 1039902), (24, 866585), (30, 693268), (40, 519951), (60, 346634), (120, 173317), (263, 79080), (526, 39540), (659, 31560), (789, 26360), (1052, 19770), (1315, 15816), (1318, 15780), (1578, 13180), (1977, 10520), (2104, 9885), (2630, 7908), (2636, 7890), (3156, 6590), (3295, 6312), (3945, 5272), (3954, 5260)]