21777720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{347}}^1\times {\mathrm{523}}^1$

素因数の和:884

約数の個数: 64

約数和(自身を含む): 65646720

約数和(自身を除く): 43869000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 347, 523, 694, 1041, 1046, 1388, 1569, 1735, 2082, 2092, 2615, 2776, 3138, 3470, 4164, 4184, 5205, 5230, 6276, 6940, 7845, 8328, 10410, 10460, 12552, 13880, 15690, 20820, 20920, 31380, 41640, 62760, 181481, 362962, 544443, 725924, 907405, 1088886, 1451848, 1814810, 2177772, 2722215, 3629620, 4355544, 5444430, 7259240, 10888860, 21777720]

約数ペア:

[(1, 21777720), (2, 10888860), (3, 7259240), (4, 5444430), (5, 4355544), (6, 3629620), (8, 2722215), (10, 2177772), (12, 1814810), (15, 1451848), (20, 1088886), (24, 907405), (30, 725924), (40, 544443), (60, 362962), (120, 181481), (347, 62760), (523, 41640), (694, 31380), (1041, 20920), (1046, 20820), (1388, 15690), (1569, 13880), (1735, 12552), (2082, 10460), (2092, 10410), (2615, 8328), (2776, 7845), (3138, 6940), (3470, 6276), (4164, 5230), (4184, 5205)]