15815890

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{313}}^1$

素因数の和:514

約数の個数: 32

約数和(自身を含む): 29661696

約数和(自身を除く): 13845806

約数列:

[1, 2, 5, 10, 31, 62, 155, 163, 310, 313, 326, 626, 815, 1565, 1630, 3130, 5053, 9703, 10106, 19406, 25265, 48515, 50530, 51019, 97030, 102038, 255095, 510190, 1581589, 3163178, 7907945, 15815890]

約数ペア:

[(1, 15815890), (2, 7907945), (5, 3163178), (10, 1581589), (31, 510190), (62, 255095), (155, 102038), (163, 97030), (310, 51019), (313, 50530), (326, 48515), (626, 25265), (815, 19406), (1565, 10106), (1630, 9703), (3130, 5053)]