161756640

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{112331}}^1$

素因数の和:112352

約数の個数: 72

約数和(自身を含む): 551999448

約数和(自身を除く): 390242808

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 112331, 224662, 336993, 449324, 561655, 673986, 898648, 1010979, 1123310, 1347972, 1684965, 1797296, 2021958, 2246620, 2695944, 3369930, 3594592, 4043916, 4493240, 5054895, 5391888, 6739860, 8087832, 8986480, 10109790, 10783776, 13479720, 16175664, 17972960, 20219580, 26959440, 32351328, 40439160, 53918880, 80878320, 161756640]

約数ペア:

[(1, 161756640), (2, 80878320), (3, 53918880), (4, 40439160), (5, 32351328), (6, 26959440), (8, 20219580), (9, 17972960), (10, 16175664), (12, 13479720), (15, 10783776), (16, 10109790), (18, 8986480), (20, 8087832), (24, 6739860), (30, 5391888), (32, 5054895), (36, 4493240), (40, 4043916), (45, 3594592), (48, 3369930), (60, 2695944), (72, 2246620), (80, 2021958), (90, 1797296), (96, 1684965), (120, 1347972), (144, 1123310), (160, 1010979), (180, 898648), (240, 673986), (288, 561655), (360, 449324), (480, 336993), (720, 224662), (1440, 112331)]