2047820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{317}}^1$

素因数の和:362

約数の個数: 48

約数和(自身を含む): 4808160

約数和(自身を除く): 2760340

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 317, 323, 340, 380, 634, 646, 1268, 1292, 1585, 1615, 3170, 3230, 5389, 6023, 6340, 6460, 10778, 12046, 21556, 24092, 26945, 30115, 53890, 60230, 102391, 107780, 120460, 204782, 409564, 511955, 1023910, 2047820]

約数ペア:

[(1, 2047820), (2, 1023910), (4, 511955), (5, 409564), (10, 204782), (17, 120460), (19, 107780), (20, 102391), (34, 60230), (38, 53890), (68, 30115), (76, 26945), (85, 24092), (95, 21556), (170, 12046), (190, 10778), (317, 6460), (323, 6340), (340, 6023), (380, 5389), (634, 3230), (646, 3170), (1268, 1615), (1292, 1585)]