20007760

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{13163}}^1$

素因数の和:13195

約数の個数: 40

約数和(自身を含む): 48970080

約数和(自身を除く): 28962320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 13163, 26326, 52652, 65815, 105304, 131630, 210608, 250097, 263260, 500194, 526520, 1000388, 1053040, 1250485, 2000776, 2500970, 4001552, 5001940, 10003880, 20007760]

約数ペア:

[(1, 20007760), (2, 10003880), (4, 5001940), (5, 4001552), (8, 2500970), (10, 2000776), (16, 1250485), (19, 1053040), (20, 1000388), (38, 526520), (40, 500194), (76, 263260), (80, 250097), (95, 210608), (152, 131630), (190, 105304), (304, 65815), (380, 52652), (760, 26326), (1520, 13163)]