128396640

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{267493}}^1$

素因数の和:267511

約数の個数: 48

約数和(自身を含む): 404450928

約数和(自身を除く): 276054288

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 267493, 534986, 802479, 1069972, 1337465, 1604958, 2139944, 2674930, 3209916, 4012395, 4279888, 5349860, 6419832, 8024790, 8559776, 10699720, 12839664, 16049580, 21399440, 25679328, 32099160, 42798880, 64198320, 128396640]

約数ペア:

[(1, 128396640), (2, 64198320), (3, 42798880), (4, 32099160), (5, 25679328), (6, 21399440), (8, 16049580), (10, 12839664), (12, 10699720), (15, 8559776), (16, 8024790), (20, 6419832), (24, 5349860), (30, 4279888), (32, 4012395), (40, 3209916), (48, 2674930), (60, 2139944), (80, 1604958), (96, 1337465), (120, 1069972), (160, 802479), (240, 534986), (480, 267493)]