20287620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2749}}^1$

素因数の和:2805

約数の個数: 72

約数和(自身を含む): 63063000

約数和(自身を除く): 42775380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 41, 45, 60, 82, 90, 123, 164, 180, 205, 246, 369, 410, 492, 615, 738, 820, 1230, 1476, 1845, 2460, 2749, 3690, 5498, 7380, 8247, 10996, 13745, 16494, 24741, 27490, 32988, 41235, 49482, 54980, 82470, 98964, 112709, 123705, 164940, 225418, 247410, 338127, 450836, 494820, 563545, 676254, 1014381, 1127090, 1352508, 1690635, 2028762, 2254180, 3381270, 4057524, 5071905, 6762540, 10143810, 20287620]

約数ペア:

[(1, 20287620), (2, 10143810), (3, 6762540), (4, 5071905), (5, 4057524), (6, 3381270), (9, 2254180), (10, 2028762), (12, 1690635), (15, 1352508), (18, 1127090), (20, 1014381), (30, 676254), (36, 563545), (41, 494820), (45, 450836), (60, 338127), (82, 247410), (90, 225418), (123, 164940), (164, 123705), (180, 112709), (205, 98964), (246, 82470), (369, 54980), (410, 49482), (492, 41235), (615, 32988), (738, 27490), (820, 24741), (1230, 16494), (1476, 13745), (1845, 10996), (2460, 8247), (2749, 7380), (3690, 5498)]