20624520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{571}}^1$

素因数の和:635

約数の個数: 128

約数和(自身を含む): 72483840

約数和(自身を除く): 51859320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 43, 56, 60, 70, 84, 86, 105, 120, 129, 140, 168, 172, 210, 215, 258, 280, 301, 344, 420, 430, 516, 571, 602, 645, 840, 860, 903, 1032, 1142, 1204, 1290, 1505, 1713, 1720, 1806, 2284, 2408, 2580, 2855, 3010, 3426, 3612, 3997, 4515, 4568, 5160, 5710, 6020, 6852, 7224, 7994, 8565, 9030, 11420, 11991, 12040, 13704, 15988, 17130, 18060, 19985, 22840, 23982, 24553, 31976, 34260, 36120, 39970, 47964, 49106, 59955, 68520, 73659, 79940, 95928, 98212, 119910, 122765, 147318, 159880, 171871, 196424, 239820, 245530, 294636, 343742, 368295, 479640, 491060, 515613, 589272, 687484, 736590, 859355, 982120, 1031226, 1374968, 1473180, 1718710, 2062452, 2578065, 2946360, 3437420, 4124904, 5156130, 6874840, 10312260, 20624520]

約数ペア:

[(1, 20624520), (2, 10312260), (3, 6874840), (4, 5156130), (5, 4124904), (6, 3437420), (7, 2946360), (8, 2578065), (10, 2062452), (12, 1718710), (14, 1473180), (15, 1374968), (20, 1031226), (21, 982120), (24, 859355), (28, 736590), (30, 687484), (35, 589272), (40, 515613), (42, 491060), (43, 479640), (56, 368295), (60, 343742), (70, 294636), (84, 245530), (86, 239820), (105, 196424), (120, 171871), (129, 159880), (140, 147318), (168, 122765), (172, 119910), (210, 98212), (215, 95928), (258, 79940), (280, 73659), (301, 68520), (344, 59955), (420, 49106), (430, 47964), (516, 39970), (571, 36120), (602, 34260), (645, 31976), (840, 24553), (860, 23982), (903, 22840), (1032, 19985), (1142, 18060), (1204, 17130), (1290, 15988), (1505, 13704), (1713, 12040), (1720, 11991), (1806, 11420), (2284, 9030), (2408, 8565), (2580, 7994), (2855, 7224), (3010, 6852), (3426, 6020), (3612, 5710), (3997, 5160), (4515, 4568)]