31131720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{86477}}^1$

素因数の和:86494

約数の個数: 48

約数和(自身を含む): 101179260

約数和(自身を除く): 70047540

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, 86477, 172954, 259431, 345908, 432385, 518862, 691816, 778293, 864770, 1037724, 1297155, 1556586, 1729540, 2075448, 2594310, 3113172, 3459080, 3891465, 5188620, 6226344, 7782930, 10377240, 15565860, 31131720]

約数ペア:

[(1, 31131720), (2, 15565860), (3, 10377240), (4, 7782930), (5, 6226344), (6, 5188620), (8, 3891465), (9, 3459080), (10, 3113172), (12, 2594310), (15, 2075448), (18, 1729540), (20, 1556586), (24, 1297155), (30, 1037724), (36, 864770), (40, 778293), (45, 691816), (60, 518862), (72, 432385), (90, 345908), (120, 259431), (180, 172954), (360, 86477)]