16639870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4129}}^1$

素因数の和:4180

約数の個数: 32

約数和(自身を含む): 33304320

約数和(自身を除く): 16664450

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 4129, 8258, 20645, 41290, 53677, 107354, 127999, 255998, 268385, 536770, 639995, 1279990, 1663987, 3327974, 8319935, 16639870]

約数ペア:

[(1, 16639870), (2, 8319935), (5, 3327974), (10, 1663987), (13, 1279990), (26, 639995), (31, 536770), (62, 268385), (65, 255998), (130, 127999), (155, 107354), (310, 53677), (403, 41290), (806, 20645), (2015, 8258), (4030, 4129)]