1839920

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{211}}^1$

素因数の和:333

約数の個数: 40

約数和(自身を含む): 4337520

約数和(自身を除く): 2497600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 211, 218, 422, 436, 545, 844, 872, 1055, 1090, 1688, 1744, 2110, 2180, 3376, 4220, 4360, 8440, 8720, 16880, 22999, 45998, 91996, 114995, 183992, 229990, 367984, 459980, 919960, 1839920]

約数ペア:

[(1, 1839920), (2, 919960), (4, 459980), (5, 367984), (8, 229990), (10, 183992), (16, 114995), (20, 91996), (40, 45998), (80, 22999), (109, 16880), (211, 8720), (218, 8440), (422, 4360), (436, 4220), (545, 3376), (844, 2180), (872, 2110), (1055, 1744), (1090, 1688)]