20581920

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{14293}}^1$

素因数の和:14314

約数の個数: 72

約数和(自身を含む): 70240716

約数和(自身を除く): 49658796

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 14293, 28586, 42879, 57172, 71465, 85758, 114344, 128637, 142930, 171516, 214395, 228688, 257274, 285860, 343032, 428790, 457376, 514548, 571720, 643185, 686064, 857580, 1029096, 1143440, 1286370, 1372128, 1715160, 2058192, 2286880, 2572740, 3430320, 4116384, 5145480, 6860640, 10290960, 20581920]

約数ペア:

[(1, 20581920), (2, 10290960), (3, 6860640), (4, 5145480), (5, 4116384), (6, 3430320), (8, 2572740), (9, 2286880), (10, 2058192), (12, 1715160), (15, 1372128), (16, 1286370), (18, 1143440), (20, 1029096), (24, 857580), (30, 686064), (32, 643185), (36, 571720), (40, 514548), (45, 457376), (48, 428790), (60, 343032), (72, 285860), (80, 257274), (90, 228688), (96, 214395), (120, 171516), (144, 142930), (160, 128637), (180, 114344), (240, 85758), (288, 71465), (360, 57172), (480, 42879), (720, 28586), (1440, 14293)]