18278220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{317}}^1$

素因数の和:391

約数の個数: 72

約数和(自身を含む): 53050032

約数和(自身を除く): 34771812

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 317, 372, 465, 620, 634, 930, 951, 961, 1268, 1585, 1860, 1902, 1922, 2883, 3170, 3804, 3844, 4755, 4805, 5766, 6340, 9510, 9610, 9827, 11532, 14415, 19020, 19220, 19654, 28830, 29481, 39308, 49135, 57660, 58962, 98270, 117924, 147405, 196540, 294810, 304637, 589620, 609274, 913911, 1218548, 1523185, 1827822, 3046370, 3655644, 4569555, 6092740, 9139110, 18278220]

約数ペア:

[(1, 18278220), (2, 9139110), (3, 6092740), (4, 4569555), (5, 3655644), (6, 3046370), (10, 1827822), (12, 1523185), (15, 1218548), (20, 913911), (30, 609274), (31, 589620), (60, 304637), (62, 294810), (93, 196540), (124, 147405), (155, 117924), (186, 98270), (310, 58962), (317, 57660), (372, 49135), (465, 39308), (620, 29481), (634, 28830), (930, 19654), (951, 19220), (961, 19020), (1268, 14415), (1585, 11532), (1860, 9827), (1902, 9610), (1922, 9510), (2883, 6340), (3170, 5766), (3804, 4805), (3844, 4755)]