20628720

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{4093}}^1$

素因数の和:4119

約数の個数: 120

約数和(自身を含む): 79194336

約数和(自身を除く): 58565616

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 4093, 5040, 8186, 12279, 16372, 20465, 24558, 28651, 32744, 36837, 40930, 49116, 57302, 61395, 65488, 73674, 81860, 85953, 98232, 114604, 122790, 143255, 147348, 163720, 171906, 184185, 196464, 229208, 245580, 257859, 286510, 294696, 327440, 343812, 368370, 429765, 458416, 491160, 515718, 573020, 589392, 687624, 736740, 859530, 982320, 1031436, 1146040, 1289295, 1375248, 1473480, 1719060, 2062872, 2292080, 2578590, 2946960, 3438120, 4125744, 5157180, 6876240, 10314360, 20628720]

約数ペア:

[(1, 20628720), (2, 10314360), (3, 6876240), (4, 5157180), (5, 4125744), (6, 3438120), (7, 2946960), (8, 2578590), (9, 2292080), (10, 2062872), (12, 1719060), (14, 1473480), (15, 1375248), (16, 1289295), (18, 1146040), (20, 1031436), (21, 982320), (24, 859530), (28, 736740), (30, 687624), (35, 589392), (36, 573020), (40, 515718), (42, 491160), (45, 458416), (48, 429765), (56, 368370), (60, 343812), (63, 327440), (70, 294696), (72, 286510), (80, 257859), (84, 245580), (90, 229208), (105, 196464), (112, 184185), (120, 171906), (126, 163720), (140, 147348), (144, 143255), (168, 122790), (180, 114604), (210, 98232), (240, 85953), (252, 81860), (280, 73674), (315, 65488), (336, 61395), (360, 57302), (420, 49116), (504, 40930), (560, 36837), (630, 32744), (720, 28651), (840, 24558), (1008, 20465), (1260, 16372), (1680, 12279), (2520, 8186), (4093, 5040)]