28489360

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18743}}^1$

素因数の和:18775

約数の個数: 40

約数和(自身を含む): 69727680

約数和(自身を除く): 41238320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 18743, 37486, 74972, 93715, 149944, 187430, 299888, 356117, 374860, 712234, 749720, 1424468, 1499440, 1780585, 2848936, 3561170, 5697872, 7122340, 14244680, 28489360]

約数ペア:

[(1, 28489360), (2, 14244680), (4, 7122340), (5, 5697872), (8, 3561170), (10, 2848936), (16, 1780585), (19, 1499440), (20, 1424468), (38, 749720), (40, 712234), (76, 374860), (80, 356117), (95, 299888), (152, 187430), (190, 149944), (304, 93715), (380, 74972), (760, 37486), (1520, 18743)]