1440987520

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{1223}}^1$

素因数の和:1512

約数の個数: 128

約数和(自身を含む): 3955184640

約数和(自身を除く): 2514197120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 263, 280, 320, 448, 526, 560, 640, 896, 1052, 1120, 1223, 1315, 1841, 2104, 2240, 2446, 2630, 3682, 4208, 4480, 4892, 5260, 6115, 7364, 8416, 8561, 9205, 9784, 10520, 12230, 14728, 16832, 17122, 18410, 19568, 21040, 24460, 29456, 33664, 34244, 36820, 39136, 42080, 42805, 48920, 58912, 68488, 73640, 78272, 84160, 85610, 97840, 117824, 136976, 147280, 156544, 168320, 171220, 195680, 235648, 273952, 294560, 321649, 342440, 391360, 547904, 589120, 643298, 684880, 782720, 1095808, 1178240, 1286596, 1369760, 1608245, 2251543, 2573192, 2739520, 3216490, 4503086, 5146384, 5479040, 6432980, 9006172, 10292768, 11257715, 12865960, 18012344, 20585536, 22515430, 25731920, 36024688, 41171072, 45030860, 51463840, 72049376, 90061720, 102927680, 144098752, 180123440, 205855360, 288197504, 360246880, 720493760, 1440987520]

約数ペア:

[(1, 1440987520), (2, 720493760), (4, 360246880), (5, 288197504), (7, 205855360), (8, 180123440), (10, 144098752), (14, 102927680), (16, 90061720), (20, 72049376), (28, 51463840), (32, 45030860), (35, 41171072), (40, 36024688), (56, 25731920), (64, 22515430), (70, 20585536), (80, 18012344), (112, 12865960), (128, 11257715), (140, 10292768), (160, 9006172), (224, 6432980), (263, 5479040), (280, 5146384), (320, 4503086), (448, 3216490), (526, 2739520), (560, 2573192), (640, 2251543), (896, 1608245), (1052, 1369760), (1120, 1286596), (1223, 1178240), (1315, 1095808), (1841, 782720), (2104, 684880), (2240, 643298), (2446, 589120), (2630, 547904), (3682, 391360), (4208, 342440), (4480, 321649), (4892, 294560), (5260, 273952), (6115, 235648), (7364, 195680), (8416, 171220), (8561, 168320), (9205, 156544), (9784, 147280), (10520, 136976), (12230, 117824), (14728, 97840), (16832, 85610), (17122, 84160), (18410, 78272), (19568, 73640), (21040, 68488), (24460, 58912), (29456, 48920), (33664, 42805), (34244, 42080), (36820, 39136)]