20350440

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{571}}^1$

素因数の和:605

約数の個数: 160

約数和(自身を含む): 74748960

約数和(自身を除く): 54398520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 54, 55, 60, 66, 72, 81, 88, 90, 99, 108, 110, 120, 132, 135, 162, 165, 180, 198, 216, 220, 264, 270, 297, 324, 330, 360, 396, 405, 440, 495, 540, 571, 594, 648, 660, 792, 810, 891, 990, 1080, 1142, 1188, 1320, 1485, 1620, 1713, 1782, 1980, 2284, 2376, 2855, 2970, 3240, 3426, 3564, 3960, 4455, 4568, 5139, 5710, 5940, 6281, 6852, 7128, 8565, 8910, 10278, 11420, 11880, 12562, 13704, 15417, 17130, 17820, 18843, 20556, 22840, 25124, 25695, 30834, 31405, 34260, 35640, 37686, 41112, 46251, 50248, 51390, 56529, 61668, 62810, 68520, 75372, 77085, 92502, 94215, 102780, 113058, 123336, 125620, 150744, 154170, 169587, 185004, 188430, 205560, 226116, 231255, 251240, 282645, 308340, 339174, 370008, 376860, 452232, 462510, 508761, 565290, 616680, 678348, 753720, 847935, 925020, 1017522, 1130580, 1356696, 1695870, 1850040, 2035044, 2261160, 2543805, 3391740, 4070088, 5087610, 6783480, 10175220, 20350440]

約数ペア:

[(1, 20350440), (2, 10175220), (3, 6783480), (4, 5087610), (5, 4070088), (6, 3391740), (8, 2543805), (9, 2261160), (10, 2035044), (11, 1850040), (12, 1695870), (15, 1356696), (18, 1130580), (20, 1017522), (22, 925020), (24, 847935), (27, 753720), (30, 678348), (33, 616680), (36, 565290), (40, 508761), (44, 462510), (45, 452232), (54, 376860), (55, 370008), (60, 339174), (66, 308340), (72, 282645), (81, 251240), (88, 231255), (90, 226116), (99, 205560), (108, 188430), (110, 185004), (120, 169587), (132, 154170), (135, 150744), (162, 125620), (165, 123336), (180, 113058), (198, 102780), (216, 94215), (220, 92502), (264, 77085), (270, 75372), (297, 68520), (324, 62810), (330, 61668), (360, 56529), (396, 51390), (405, 50248), (440, 46251), (495, 41112), (540, 37686), (571, 35640), (594, 34260), (648, 31405), (660, 30834), (792, 25695), (810, 25124), (891, 22840), (990, 20556), (1080, 18843), (1142, 17820), (1188, 17130), (1320, 15417), (1485, 13704), (1620, 12562), (1713, 11880), (1782, 11420), (1980, 10278), (2284, 8910), (2376, 8565), (2855, 7128), (2970, 6852), (3240, 6281), (3426, 5940), (3564, 5710), (3960, 5139), (4455, 4568)]