21151440

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1013}}^1$

素因数の和:1061

約数の個数: 120

約数和(自身を含む): 73555560

約数和(自身を除く): 52404120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 29, 30, 36, 40, 45, 48, 58, 60, 72, 80, 87, 90, 116, 120, 144, 145, 174, 180, 232, 240, 261, 290, 348, 360, 435, 464, 522, 580, 696, 720, 870, 1013, 1044, 1160, 1305, 1392, 1740, 2026, 2088, 2320, 2610, 3039, 3480, 4052, 4176, 5065, 5220, 6078, 6960, 8104, 9117, 10130, 10440, 12156, 15195, 16208, 18234, 20260, 20880, 24312, 29377, 30390, 36468, 40520, 45585, 48624, 58754, 60780, 72936, 81040, 88131, 91170, 117508, 121560, 145872, 146885, 176262, 182340, 235016, 243120, 264393, 293770, 352524, 364680, 440655, 470032, 528786, 587540, 705048, 729360, 881310, 1057572, 1175080, 1321965, 1410096, 1762620, 2115144, 2350160, 2643930, 3525240, 4230288, 5287860, 7050480, 10575720, 21151440]

約数ペア:

[(1, 21151440), (2, 10575720), (3, 7050480), (4, 5287860), (5, 4230288), (6, 3525240), (8, 2643930), (9, 2350160), (10, 2115144), (12, 1762620), (15, 1410096), (16, 1321965), (18, 1175080), (20, 1057572), (24, 881310), (29, 729360), (30, 705048), (36, 587540), (40, 528786), (45, 470032), (48, 440655), (58, 364680), (60, 352524), (72, 293770), (80, 264393), (87, 243120), (90, 235016), (116, 182340), (120, 176262), (144, 146885), (145, 145872), (174, 121560), (180, 117508), (232, 91170), (240, 88131), (261, 81040), (290, 72936), (348, 60780), (360, 58754), (435, 48624), (464, 45585), (522, 40520), (580, 36468), (696, 30390), (720, 29377), (870, 24312), (1013, 20880), (1044, 20260), (1160, 18234), (1305, 16208), (1392, 15195), (1740, 12156), (2026, 10440), (2088, 10130), (2320, 9117), (2610, 8104), (3039, 6960), (3480, 6078), (4052, 5220), (4176, 5065)]