20639160

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{57331}}^1$

素因数の和:57348

約数の個数: 48

約数和(自身を含む): 67078440

約数和(自身を除く): 46439280

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, 57331, 114662, 171993, 229324, 286655, 343986, 458648, 515979, 573310, 687972, 859965, 1031958, 1146620, 1375944, 1719930, 2063916, 2293240, 2579895, 3439860, 4127832, 5159790, 6879720, 10319580, 20639160]

約数ペア:

[(1, 20639160), (2, 10319580), (3, 6879720), (4, 5159790), (5, 4127832), (6, 3439860), (8, 2579895), (9, 2293240), (10, 2063916), (12, 1719930), (15, 1375944), (18, 1146620), (20, 1031958), (24, 859965), (30, 687972), (36, 573310), (40, 515979), (45, 458648), (60, 343986), (72, 286655), (90, 229324), (120, 171993), (180, 114662), (360, 57331)]