20944920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{347}}^1\times {\mathrm{503}}^1$

素因数の和:864

約数の個数: 64

約数和(自身を含む): 63141120

約数和(自身を除く): 42196200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 347, 503, 694, 1006, 1041, 1388, 1509, 1735, 2012, 2082, 2515, 2776, 3018, 3470, 4024, 4164, 5030, 5205, 6036, 6940, 7545, 8328, 10060, 10410, 12072, 13880, 15090, 20120, 20820, 30180, 41640, 60360, 174541, 349082, 523623, 698164, 872705, 1047246, 1396328, 1745410, 2094492, 2618115, 3490820, 4188984, 5236230, 6981640, 10472460, 20944920]

約数ペア:

[(1, 20944920), (2, 10472460), (3, 6981640), (4, 5236230), (5, 4188984), (6, 3490820), (8, 2618115), (10, 2094492), (12, 1745410), (15, 1396328), (20, 1047246), (24, 872705), (30, 698164), (40, 523623), (60, 349082), (120, 174541), (347, 60360), (503, 41640), (694, 30180), (1006, 20820), (1041, 20120), (1388, 15090), (1509, 13880), (1735, 12072), (2012, 10410), (2082, 10060), (2515, 8328), (2776, 7545), (3018, 6940), (3470, 6036), (4024, 5205), (4164, 5030)]