20411580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2113}}^1$

素因数の和:2155

約数の個数: 96

約数和(自身を含む): 68189184

約数和(自身を除く): 47777604

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 42, 46, 60, 69, 70, 84, 92, 105, 115, 138, 140, 161, 210, 230, 276, 322, 345, 420, 460, 483, 644, 690, 805, 966, 1380, 1610, 1932, 2113, 2415, 3220, 4226, 4830, 6339, 8452, 9660, 10565, 12678, 14791, 21130, 25356, 29582, 31695, 42260, 44373, 48599, 59164, 63390, 73955, 88746, 97198, 126780, 145797, 147910, 177492, 194396, 221865, 242995, 291594, 295820, 340193, 443730, 485990, 583188, 680386, 728985, 887460, 971980, 1020579, 1360772, 1457970, 1700965, 2041158, 2915940, 3401930, 4082316, 5102895, 6803860, 10205790, 20411580]

約数ペア:

[(1, 20411580), (2, 10205790), (3, 6803860), (4, 5102895), (5, 4082316), (6, 3401930), (7, 2915940), (10, 2041158), (12, 1700965), (14, 1457970), (15, 1360772), (20, 1020579), (21, 971980), (23, 887460), (28, 728985), (30, 680386), (35, 583188), (42, 485990), (46, 443730), (60, 340193), (69, 295820), (70, 291594), (84, 242995), (92, 221865), (105, 194396), (115, 177492), (138, 147910), (140, 145797), (161, 126780), (210, 97198), (230, 88746), (276, 73955), (322, 63390), (345, 59164), (420, 48599), (460, 44373), (483, 42260), (644, 31695), (690, 29582), (805, 25356), (966, 21130), (1380, 14791), (1610, 12678), (1932, 10565), (2113, 9660), (2415, 8452), (3220, 6339), (4226, 4830)]