61680555

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1$

素因数の和:345

約数の個数: 64

約数和(自身を含む): 116928000

約数和(自身を除く): 55247445

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 135, 139, 171, 173, 285, 417, 513, 519, 695, 855, 865, 1251, 1557, 2085, 2565, 2595, 2641, 3287, 3753, 4671, 6255, 7785, 7923, 9861, 13205, 16435, 18765, 23355, 23769, 24047, 29583, 39615, 49305, 71307, 72141, 88749, 118845, 120235, 147915, 216423, 356535, 360705, 443745, 456893, 649269, 1082115, 1370679, 2284465, 3246345, 4112037, 6853395, 12336111, 20560185, 61680555]

約数ペア:

[(1, 61680555), (3, 20560185), (5, 12336111), (9, 6853395), (15, 4112037), (19, 3246345), (27, 2284465), (45, 1370679), (57, 1082115), (95, 649269), (135, 456893), (139, 443745), (171, 360705), (173, 356535), (285, 216423), (417, 147915), (513, 120235), (519, 118845), (695, 88749), (855, 72141), (865, 71307), (1251, 49305), (1557, 39615), (2085, 29583), (2565, 24047), (2595, 23769), (2641, 23355), (3287, 18765), (3753, 16435), (4671, 13205), (6255, 9861), (7785, 7923)]