21992320

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{4909}}^1$

素因数の和:4935

約数の個数: 64

約数和(自身を含む): 60098400

約数和(自身を除く): 38106080

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, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 4909, 9818, 19636, 24545, 34363, 39272, 49090, 68726, 78544, 98180, 137452, 157088, 171815, 196360, 274904, 314176, 343630, 392720, 549808, 628352, 687260, 785440, 1099616, 1374520, 1570880, 2199232, 2749040, 3141760, 4398464, 5498080, 10996160, 21992320]

約数ペア:

[(1, 21992320), (2, 10996160), (4, 5498080), (5, 4398464), (7, 3141760), (8, 2749040), (10, 2199232), (14, 1570880), (16, 1374520), (20, 1099616), (28, 785440), (32, 687260), (35, 628352), (40, 549808), (56, 392720), (64, 343630), (70, 314176), (80, 274904), (112, 196360), (128, 171815), (140, 157088), (160, 137452), (224, 98180), (280, 78544), (320, 68726), (448, 49090), (560, 39272), (640, 34363), (896, 24545), (1120, 19636), (2240, 9818), (4480, 4909)]