289130140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{4327}}^1$

素因数の和:4606

約数の個数: 48

約数和(自身を含む): 656574912

約数和(自身を除く): 367444772

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 257, 260, 514, 1028, 1285, 2570, 3341, 4327, 5140, 6682, 8654, 13364, 16705, 17308, 21635, 33410, 43270, 56251, 66820, 86540, 112502, 225004, 281255, 562510, 1112039, 1125020, 2224078, 4448156, 5560195, 11120390, 14456507, 22240780, 28913014, 57826028, 72282535, 144565070, 289130140]

約数ペア:

[(1, 289130140), (2, 144565070), (4, 72282535), (5, 57826028), (10, 28913014), (13, 22240780), (20, 14456507), (26, 11120390), (52, 5560195), (65, 4448156), (130, 2224078), (257, 1125020), (260, 1112039), (514, 562510), (1028, 281255), (1285, 225004), (2570, 112502), (3341, 86540), (4327, 66820), (5140, 56251), (6682, 43270), (8654, 33410), (13364, 21635), (16705, 17308)]