390894543

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{1741}}^1$

素因数の和:1880

約数の個数: 48

約数和(自身を含む): 646769760

約数和(自身を除く): 255875217

約数列:

[1, 3, 9, 13, 19, 39, 57, 101, 117, 171, 247, 303, 741, 909, 1313, 1741, 1919, 2223, 3939, 5223, 5757, 11817, 15669, 17271, 22633, 24947, 33079, 67899, 74841, 99237, 175841, 203697, 224523, 297711, 430027, 527523, 1290081, 1582569, 2285933, 3340979, 3870243, 6857799, 10022937, 20573397, 30068811, 43432727, 130298181, 390894543]

約数ペア:

[(1, 390894543), (3, 130298181), (9, 43432727), (13, 30068811), (19, 20573397), (39, 10022937), (57, 6857799), (101, 3870243), (117, 3340979), (171, 2285933), (247, 1582569), (303, 1290081), (741, 527523), (909, 430027), (1313, 297711), (1741, 224523), (1919, 203697), (2223, 175841), (3939, 99237), (5223, 74841), (5757, 67899), (11817, 33079), (15669, 24947), (17271, 22633)]