1640287870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12617599}}^1$

素因数の和:12617619

約数の個数: 16

約数和(自身を含む): 3179635200

約数和(自身を除く): 1539347330

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 12617599, 25235198, 63087995, 126175990, 164028787, 328057574, 820143935, 1640287870]

約数ペア:

[(1, 1640287870), (2, 820143935), (5, 328057574), (10, 164028787), (13, 126175990), (26, 63087995), (65, 25235198), (130, 12617599)]