80120180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{13309}}^1$

素因数の和:13368

約数の個数: 48

約数和(自身を含む): 196775040

約数和(自身を除く): 116654860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1505, 3010, 6020, 13309, 26618, 53236, 66545, 93163, 133090, 186326, 266180, 372652, 465815, 572287, 931630, 1144574, 1863260, 2289148, 2861435, 4006009, 5722870, 8012018, 11445740, 16024036, 20030045, 40060090, 80120180]

約数ペア:

[(1, 80120180), (2, 40060090), (4, 20030045), (5, 16024036), (7, 11445740), (10, 8012018), (14, 5722870), (20, 4006009), (28, 2861435), (35, 2289148), (43, 1863260), (70, 1144574), (86, 931630), (140, 572287), (172, 465815), (215, 372652), (301, 266180), (430, 186326), (602, 133090), (860, 93163), (1204, 66545), (1505, 53236), (3010, 26618), (6020, 13309)]