16390480

素因数分解:

$2^4\times 5^1\times {\mathrm{211}}^1\times {\mathrm{971}}^1$

素因数の和:1195

約数の個数: 40

約数和(自身を含む): 38327904

約数和(自身を除く): 21937424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 211, 422, 844, 971, 1055, 1688, 1942, 2110, 3376, 3884, 4220, 4855, 7768, 8440, 9710, 15536, 16880, 19420, 38840, 77680, 204881, 409762, 819524, 1024405, 1639048, 2048810, 3278096, 4097620, 8195240, 16390480]

約数ペア:

[(1, 16390480), (2, 8195240), (4, 4097620), (5, 3278096), (8, 2048810), (10, 1639048), (16, 1024405), (20, 819524), (40, 409762), (80, 204881), (211, 77680), (422, 38840), (844, 19420), (971, 16880), (1055, 15536), (1688, 9710), (1942, 8440), (2110, 7768), (3376, 4855), (3884, 4220)]