256614540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1093}}^1$

素因数の和:1168

約数の個数: 192

約数和(自身を含む): 905726976

約数和(自身を除く): 649112436

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 43, 52, 60, 65, 70, 78, 84, 86, 91, 105, 129, 130, 140, 156, 172, 182, 195, 210, 215, 258, 260, 273, 301, 364, 390, 420, 430, 455, 516, 546, 559, 602, 645, 780, 860, 903, 910, 1092, 1093, 1118, 1204, 1290, 1365, 1505, 1677, 1806, 1820, 2186, 2236, 2580, 2730, 2795, 3010, 3279, 3354, 3612, 3913, 4372, 4515, 5460, 5465, 5590, 6020, 6558, 6708, 7651, 7826, 8385, 9030, 10930, 11180, 11739, 13116, 14209, 15302, 15652, 16395, 16770, 18060, 19565, 21860, 22953, 23478, 28418, 30604, 32790, 33540, 38255, 39130, 42627, 45906, 46956, 46999, 56836, 58695, 65580, 71045, 76510, 78260, 85254, 91812, 93998, 99463, 114765, 117390, 140997, 142090, 153020, 170508, 187996, 198926, 213135, 229530, 234780, 234995, 281994, 284180, 298389, 328993, 397852, 426270, 459060, 469990, 497315, 563988, 596778, 610987, 657986, 704985, 852540, 939980, 986979, 994630, 1193556, 1221974, 1315972, 1409970, 1491945, 1644965, 1832961, 1973958, 1989260, 2443948, 2819940, 2983890, 3054935, 3289930, 3665922, 3947916, 4276909, 4934895, 5967780, 6109870, 6579860, 7331844, 8553818, 9164805, 9869790, 12219740, 12830727, 17107636, 18329610, 19739580, 21384545, 25661454, 36659220, 42769090, 51322908, 64153635, 85538180, 128307270, 256614540]

約数ペア:

[(1, 256614540), (2, 128307270), (3, 85538180), (4, 64153635), (5, 51322908), (6, 42769090), (7, 36659220), (10, 25661454), (12, 21384545), (13, 19739580), (14, 18329610), (15, 17107636), (20, 12830727), (21, 12219740), (26, 9869790), (28, 9164805), (30, 8553818), (35, 7331844), (39, 6579860), (42, 6109870), (43, 5967780), (52, 4934895), (60, 4276909), (65, 3947916), (70, 3665922), (78, 3289930), (84, 3054935), (86, 2983890), (91, 2819940), (105, 2443948), (129, 1989260), (130, 1973958), (140, 1832961), (156, 1644965), (172, 1491945), (182, 1409970), (195, 1315972), (210, 1221974), (215, 1193556), (258, 994630), (260, 986979), (273, 939980), (301, 852540), (364, 704985), (390, 657986), (420, 610987), (430, 596778), (455, 563988), (516, 497315), (546, 469990), (559, 459060), (602, 426270), (645, 397852), (780, 328993), (860, 298389), (903, 284180), (910, 281994), (1092, 234995), (1093, 234780), (1118, 229530), (1204, 213135), (1290, 198926), (1365, 187996), (1505, 170508), (1677, 153020), (1806, 142090), (1820, 140997), (2186, 117390), (2236, 114765), (2580, 99463), (2730, 93998), (2795, 91812), (3010, 85254), (3279, 78260), (3354, 76510), (3612, 71045), (3913, 65580), (4372, 58695), (4515, 56836), (5460, 46999), (5465, 46956), (5590, 45906), (6020, 42627), (6558, 39130), (6708, 38255), (7651, 33540), (7826, 32790), (8385, 30604), (9030, 28418), (10930, 23478), (11180, 22953), (11739, 21860), (13116, 19565), (14209, 18060), (15302, 16770), (15652, 16395)]