78821220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{1367}}^1$

素因数の和:1441

約数の個数: 72

約数和(自身を含む): 228215232

約数和(自身を除く): 149394012

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 372, 465, 620, 930, 961, 1367, 1860, 1922, 2734, 2883, 3844, 4101, 4805, 5468, 5766, 6835, 8202, 9610, 11532, 13670, 14415, 16404, 19220, 20505, 27340, 28830, 41010, 42377, 57660, 82020, 84754, 127131, 169508, 211885, 254262, 423770, 508524, 635655, 847540, 1271310, 1313687, 2542620, 2627374, 3941061, 5254748, 6568435, 7882122, 13136870, 15764244, 19705305, 26273740, 39410610, 78821220]

約数ペア:

[(1, 78821220), (2, 39410610), (3, 26273740), (4, 19705305), (5, 15764244), (6, 13136870), (10, 7882122), (12, 6568435), (15, 5254748), (20, 3941061), (30, 2627374), (31, 2542620), (60, 1313687), (62, 1271310), (93, 847540), (124, 635655), (155, 508524), (186, 423770), (310, 254262), (372, 211885), (465, 169508), (620, 127131), (930, 84754), (961, 82020), (1367, 57660), (1860, 42377), (1922, 41010), (2734, 28830), (2883, 27340), (3844, 20505), (4101, 19220), (4805, 16404), (5468, 14415), (5766, 13670), (6835, 11532), (8202, 9610)]