21829080

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1999}}^1$

素因数の和:2033

約数の個数: 128

約数和(自身を含む): 80640000

約数和(自身を除く): 58810920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 78, 84, 91, 104, 105, 120, 130, 140, 156, 168, 182, 195, 210, 260, 273, 280, 312, 364, 390, 420, 455, 520, 546, 728, 780, 840, 910, 1092, 1365, 1560, 1820, 1999, 2184, 2730, 3640, 3998, 5460, 5997, 7996, 9995, 10920, 11994, 13993, 15992, 19990, 23988, 25987, 27986, 29985, 39980, 41979, 47976, 51974, 55972, 59970, 69965, 77961, 79960, 83958, 103948, 111944, 119940, 129935, 139930, 155922, 167916, 181909, 207896, 209895, 239880, 259870, 279860, 311844, 335832, 363818, 389805, 419790, 519740, 545727, 559720, 623688, 727636, 779610, 839580, 909545, 1039480, 1091454, 1455272, 1559220, 1679160, 1819090, 2182908, 2728635, 3118440, 3638180, 4365816, 5457270, 7276360, 10914540, 21829080]

約数ペア:

[(1, 21829080), (2, 10914540), (3, 7276360), (4, 5457270), (5, 4365816), (6, 3638180), (7, 3118440), (8, 2728635), (10, 2182908), (12, 1819090), (13, 1679160), (14, 1559220), (15, 1455272), (20, 1091454), (21, 1039480), (24, 909545), (26, 839580), (28, 779610), (30, 727636), (35, 623688), (39, 559720), (40, 545727), (42, 519740), (52, 419790), (56, 389805), (60, 363818), (65, 335832), (70, 311844), (78, 279860), (84, 259870), (91, 239880), (104, 209895), (105, 207896), (120, 181909), (130, 167916), (140, 155922), (156, 139930), (168, 129935), (182, 119940), (195, 111944), (210, 103948), (260, 83958), (273, 79960), (280, 77961), (312, 69965), (364, 59970), (390, 55972), (420, 51974), (455, 47976), (520, 41979), (546, 39980), (728, 29985), (780, 27986), (840, 25987), (910, 23988), (1092, 19990), (1365, 15992), (1560, 13993), (1820, 11994), (1999, 10920), (2184, 9995), (2730, 7996), (3640, 5997), (3998, 5460)]