19960080

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{109}}^2$

素因数の和:241

約数の個数: 120

約数和(自身を含む): 71370432

約数和(自身を除く): 51410352

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 109, 112, 120, 140, 168, 210, 218, 240, 280, 327, 336, 420, 436, 545, 560, 654, 763, 840, 872, 1090, 1308, 1526, 1635, 1680, 1744, 2180, 2289, 2616, 3052, 3270, 3815, 4360, 4578, 5232, 6104, 6540, 7630, 8720, 9156, 11445, 11881, 12208, 13080, 15260, 18312, 22890, 23762, 26160, 30520, 35643, 36624, 45780, 47524, 59405, 61040, 71286, 83167, 91560, 95048, 118810, 142572, 166334, 178215, 183120, 190096, 237620, 249501, 285144, 332668, 356430, 415835, 475240, 499002, 570288, 665336, 712860, 831670, 950480, 998004, 1247505, 1330672, 1425720, 1663340, 1996008, 2495010, 2851440, 3326680, 3992016, 4990020, 6653360, 9980040, 19960080]

約数ペア:

[(1, 19960080), (2, 9980040), (3, 6653360), (4, 4990020), (5, 3992016), (6, 3326680), (7, 2851440), (8, 2495010), (10, 1996008), (12, 1663340), (14, 1425720), (15, 1330672), (16, 1247505), (20, 998004), (21, 950480), (24, 831670), (28, 712860), (30, 665336), (35, 570288), (40, 499002), (42, 475240), (48, 415835), (56, 356430), (60, 332668), (70, 285144), (80, 249501), (84, 237620), (105, 190096), (109, 183120), (112, 178215), (120, 166334), (140, 142572), (168, 118810), (210, 95048), (218, 91560), (240, 83167), (280, 71286), (327, 61040), (336, 59405), (420, 47524), (436, 45780), (545, 36624), (560, 35643), (654, 30520), (763, 26160), (840, 23762), (872, 22890), (1090, 18312), (1308, 15260), (1526, 13080), (1635, 12208), (1680, 11881), (1744, 11445), (2180, 9156), (2289, 8720), (2616, 7630), (3052, 6540), (3270, 6104), (3815, 5232), (4360, 4578)]