81637680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{17903}}^1$

素因数の和:17938

約数の個数: 80

約数和(自身を含む): 266411520

約数和(自身を除く): 184773840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 17903, 35806, 53709, 71612, 89515, 107418, 143224, 179030, 214836, 268545, 286448, 340157, 358060, 429672, 537090, 680314, 716120, 859344, 1020471, 1074180, 1360628, 1432240, 1700785, 2040942, 2148360, 2721256, 3401570, 4081884, 4296720, 5102355, 5442512, 6803140, 8163768, 10204710, 13606280, 16327536, 20409420, 27212560, 40818840, 81637680]

約数ペア:

[(1, 81637680), (2, 40818840), (3, 27212560), (4, 20409420), (5, 16327536), (6, 13606280), (8, 10204710), (10, 8163768), (12, 6803140), (15, 5442512), (16, 5102355), (19, 4296720), (20, 4081884), (24, 3401570), (30, 2721256), (38, 2148360), (40, 2040942), (48, 1700785), (57, 1432240), (60, 1360628), (76, 1074180), (80, 1020471), (95, 859344), (114, 716120), (120, 680314), (152, 537090), (190, 429672), (228, 358060), (240, 340157), (285, 286448), (304, 268545), (380, 214836), (456, 179030), (570, 143224), (760, 107418), (912, 89515), (1140, 71612), (1520, 53709), (2280, 35806), (4560, 17903)]