28484420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{74959}}^1$

素因数の和:74987

約数の個数: 24

約数和(自身を含む): 62966400

約数和(自身を除く): 34481980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 74959, 149918, 299836, 374795, 749590, 1424221, 1499180, 2848442, 5696884, 7121105, 14242210, 28484420]

約数ペア:

[(1, 28484420), (2, 14242210), (4, 7121105), (5, 5696884), (10, 2848442), (19, 1499180), (20, 1424221), (38, 749590), (76, 374795), (95, 299836), (190, 149918), (380, 74959)]