19919160

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{55331}}^1$

素因数の和:55348

約数の個数: 48

約数和(自身を含む): 64738440

約数和(自身を除く): 44819280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 55331, 110662, 165993, 221324, 276655, 331986, 442648, 497979, 553310, 663972, 829965, 995958, 1106620, 1327944, 1659930, 1991916, 2213240, 2489895, 3319860, 3983832, 4979790, 6639720, 9959580, 19919160]

約数ペア:

[(1, 19919160), (2, 9959580), (3, 6639720), (4, 4979790), (5, 3983832), (6, 3319860), (8, 2489895), (9, 2213240), (10, 1991916), (12, 1659930), (15, 1327944), (18, 1106620), (20, 995958), (24, 829965), (30, 663972), (36, 553310), (40, 497979), (45, 442648), (60, 331986), (72, 276655), (90, 221324), (120, 165993), (180, 110662), (360, 55331)]