28677555

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1973}}^1$

素因数の和:2020

約数の個数: 48

約数和(自身を含む): 55429920

約数和(自身を除く): 26752365

約数列:

[1, 3, 5, 9, 15, 17, 19, 45, 51, 57, 85, 95, 153, 171, 255, 285, 323, 765, 855, 969, 1615, 1973, 2907, 4845, 5919, 9865, 14535, 17757, 29595, 33541, 37487, 88785, 100623, 112461, 167705, 187435, 301869, 337383, 503115, 562305, 637279, 1509345, 1686915, 1911837, 3186395, 5735511, 9559185, 28677555]

約数ペア:

[(1, 28677555), (3, 9559185), (5, 5735511), (9, 3186395), (15, 1911837), (17, 1686915), (19, 1509345), (45, 637279), (51, 562305), (57, 503115), (85, 337383), (95, 301869), (153, 187435), (171, 167705), (255, 112461), (285, 100623), (323, 88785), (765, 37487), (855, 33541), (969, 29595), (1615, 17757), (1973, 14535), (2907, 9865), (4845, 5919)]