28559440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3923}}^1$

素因数の和:3956

約数の個数: 80

約数和(自身を含む): 81744768

約数和(自身を除く): 53185328

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 3923, 7280, 7846, 15692, 19615, 27461, 31384, 39230, 50999, 54922, 62768, 78460, 101998, 109844, 137305, 156920, 203996, 219688, 254995, 274610, 313840, 356993, 407992, 439376, 509990, 549220, 713986, 815984, 1019980, 1098440, 1427972, 1784965, 2039960, 2196880, 2855944, 3569930, 4079920, 5711888, 7139860, 14279720, 28559440]

約数ペア:

[(1, 28559440), (2, 14279720), (4, 7139860), (5, 5711888), (7, 4079920), (8, 3569930), (10, 2855944), (13, 2196880), (14, 2039960), (16, 1784965), (20, 1427972), (26, 1098440), (28, 1019980), (35, 815984), (40, 713986), (52, 549220), (56, 509990), (65, 439376), (70, 407992), (80, 356993), (91, 313840), (104, 274610), (112, 254995), (130, 219688), (140, 203996), (182, 156920), (208, 137305), (260, 109844), (280, 101998), (364, 78460), (455, 62768), (520, 54922), (560, 50999), (728, 39230), (910, 31384), (1040, 27461), (1456, 19615), (1820, 15692), (3640, 7846), (3923, 7280)]