19980857510

素因数分解:

$2^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{479}}^1\times {\mathrm{16619}}^1$

素因数の和:17356

約数の個数: 32

約数和(自身を含む): 36186393600

約数和(自身を除く): 16205536090

約数列:

[1, 2, 5, 10, 251, 479, 502, 958, 1255, 2395, 2510, 4790, 16619, 33238, 83095, 120229, 166190, 240458, 601145, 1202290, 4171369, 7960501, 8342738, 15921002, 20856845, 39802505, 41713690, 79605010, 1998085751, 3996171502, 9990428755, 19980857510]

約数ペア:

[(1, 19980857510), (2, 9990428755), (5, 3996171502), (10, 1998085751), (251, 79605010), (479, 41713690), (502, 39802505), (958, 20856845), (1255, 15921002), (2395, 8342738), (2510, 7960501), (4790, 4171369), (16619, 1202290), (33238, 601145), (83095, 240458), (120229, 166190)]