21361680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29669}}^1$

素因数の和:29688

約数の個数: 60

約数和(自身を含む): 71742060

約数和(自身を除く): 50380380

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 29669, 59338, 89007, 118676, 148345, 178014, 237352, 267021, 296690, 356028, 445035, 474704, 534042, 593380, 712056, 890070, 1068084, 1186760, 1335105, 1424112, 1780140, 2136168, 2373520, 2670210, 3560280, 4272336, 5340420, 7120560, 10680840, 21361680]

約数ペア:

[(1, 21361680), (2, 10680840), (3, 7120560), (4, 5340420), (5, 4272336), (6, 3560280), (8, 2670210), (9, 2373520), (10, 2136168), (12, 1780140), (15, 1424112), (16, 1335105), (18, 1186760), (20, 1068084), (24, 890070), (30, 712056), (36, 593380), (40, 534042), (45, 474704), (48, 445035), (60, 356028), (72, 296690), (80, 267021), (90, 237352), (120, 178014), (144, 148345), (180, 118676), (240, 89007), (360, 59338), (720, 29669)]