28380140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83471}}^1$

素因数の和:83497

約数の個数: 24

約数和(自身を含む): 63104832

約数和(自身を除く): 34724692

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 83471, 166942, 333884, 417355, 834710, 1419007, 1669420, 2838014, 5676028, 7095035, 14190070, 28380140]

約数ペア:

[(1, 28380140), (2, 14190070), (4, 7095035), (5, 5676028), (10, 2838014), (17, 1669420), (20, 1419007), (34, 834710), (68, 417355), (85, 333884), (170, 166942), (340, 83471)]