39992720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{317}}^1$

素因数の和:432

約数の個数: 80

約数和(自身を含む): 99368640

約数和(自身を除く): 59375920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 83, 95, 152, 166, 190, 304, 317, 332, 380, 415, 634, 664, 760, 830, 1268, 1328, 1520, 1577, 1585, 1660, 2536, 3154, 3170, 3320, 5072, 6023, 6308, 6340, 6640, 7885, 12046, 12616, 12680, 15770, 24092, 25232, 25360, 26311, 30115, 31540, 48184, 52622, 60230, 63080, 96368, 105244, 120460, 126160, 131555, 210488, 240920, 263110, 420976, 481840, 499909, 526220, 999818, 1052440, 1999636, 2104880, 2499545, 3999272, 4999090, 7998544, 9998180, 19996360, 39992720]

約数ペア:

[(1, 39992720), (2, 19996360), (4, 9998180), (5, 7998544), (8, 4999090), (10, 3999272), (16, 2499545), (19, 2104880), (20, 1999636), (38, 1052440), (40, 999818), (76, 526220), (80, 499909), (83, 481840), (95, 420976), (152, 263110), (166, 240920), (190, 210488), (304, 131555), (317, 126160), (332, 120460), (380, 105244), (415, 96368), (634, 63080), (664, 60230), (760, 52622), (830, 48184), (1268, 31540), (1328, 30115), (1520, 26311), (1577, 25360), (1585, 25232), (1660, 24092), (2536, 15770), (3154, 12680), (3170, 12616), (3320, 12046), (5072, 7885), (6023, 6640), (6308, 6340)]