18447520

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{181}}^1$

素因数の和:223

約数の個数: 144

約数和(自身を含む): 54899208

約数和(自身を除く): 36451688

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 160, 181, 182, 196, 208, 224, 245, 260, 280, 362, 364, 392, 416, 455, 490, 520, 560, 637, 724, 728, 784, 905, 910, 980, 1040, 1120, 1267, 1274, 1448, 1456, 1568, 1810, 1820, 1960, 2080, 2353, 2534, 2548, 2896, 2912, 3185, 3620, 3640, 3920, 4706, 5068, 5096, 5792, 6335, 6370, 7240, 7280, 7840, 8869, 9412, 10136, 10192, 11765, 12670, 12740, 14480, 14560, 16471, 17738, 18824, 20272, 20384, 23530, 25340, 25480, 28960, 32942, 35476, 37648, 40544, 44345, 47060, 50680, 50960, 65884, 70952, 75296, 82355, 88690, 94120, 101360, 101920, 115297, 131768, 141904, 164710, 177380, 188240, 202720, 230594, 263536, 283808, 329420, 354760, 376480, 461188, 527072, 576485, 658840, 709520, 922376, 1152970, 1317680, 1419040, 1844752, 2305940, 2635360, 3689504, 4611880, 9223760, 18447520]

約数ペア:

[(1, 18447520), (2, 9223760), (4, 4611880), (5, 3689504), (7, 2635360), (8, 2305940), (10, 1844752), (13, 1419040), (14, 1317680), (16, 1152970), (20, 922376), (26, 709520), (28, 658840), (32, 576485), (35, 527072), (40, 461188), (49, 376480), (52, 354760), (56, 329420), (65, 283808), (70, 263536), (80, 230594), (91, 202720), (98, 188240), (104, 177380), (112, 164710), (130, 141904), (140, 131768), (160, 115297), (181, 101920), (182, 101360), (196, 94120), (208, 88690), (224, 82355), (245, 75296), (260, 70952), (280, 65884), (362, 50960), (364, 50680), (392, 47060), (416, 44345), (455, 40544), (490, 37648), (520, 35476), (560, 32942), (637, 28960), (724, 25480), (728, 25340), (784, 23530), (905, 20384), (910, 20272), (980, 18824), (1040, 17738), (1120, 16471), (1267, 14560), (1274, 14480), (1448, 12740), (1456, 12670), (1568, 11765), (1810, 10192), (1820, 10136), (1960, 9412), (2080, 8869), (2353, 7840), (2534, 7280), (2548, 7240), (2896, 6370), (2912, 6335), (3185, 5792), (3620, 5096), (3640, 5068), (3920, 4706)]