20404440

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{2699}}^1$

素因数の和:2726

約数の個数: 128

約数和(自身を含む): 77760000

約数和(自身を除く): 57355560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 2699, 3780, 5398, 7560, 8097, 10796, 13495, 16194, 18893, 21592, 24291, 26990, 32388, 37786, 40485, 48582, 53980, 56679, 64776, 72873, 75572, 80970, 94465, 97164, 107960, 113358, 121455, 145746, 151144, 161940, 170037, 188930, 194328, 226716, 242910, 283395, 291492, 323880, 340074, 364365, 377860, 453432, 485820, 510111, 566790, 582984, 680148, 728730, 755720, 850185, 971640, 1020222, 1133580, 1360296, 1457460, 1700370, 2040444, 2267160, 2550555, 2914920, 3400740, 4080888, 5101110, 6801480, 10202220, 20404440]

約数ペア:

[(1, 20404440), (2, 10202220), (3, 6801480), (4, 5101110), (5, 4080888), (6, 3400740), (7, 2914920), (8, 2550555), (9, 2267160), (10, 2040444), (12, 1700370), (14, 1457460), (15, 1360296), (18, 1133580), (20, 1020222), (21, 971640), (24, 850185), (27, 755720), (28, 728730), (30, 680148), (35, 582984), (36, 566790), (40, 510111), (42, 485820), (45, 453432), (54, 377860), (56, 364365), (60, 340074), (63, 323880), (70, 291492), (72, 283395), (84, 242910), (90, 226716), (105, 194328), (108, 188930), (120, 170037), (126, 161940), (135, 151144), (140, 145746), (168, 121455), (180, 113358), (189, 107960), (210, 97164), (216, 94465), (252, 80970), (270, 75572), (280, 72873), (315, 64776), (360, 56679), (378, 53980), (420, 48582), (504, 40485), (540, 37786), (630, 32388), (756, 26990), (840, 24291), (945, 21592), (1080, 18893), (1260, 16194), (1512, 13495), (1890, 10796), (2520, 8097), (2699, 7560), (3780, 5398)]