78067780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{2153}}^1$

素因数の和:2213

約数の個数: 72

約数和(自身を含む): 195953688

約数和(自身を除く): 117885908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 49, 70, 74, 98, 140, 148, 185, 196, 245, 259, 370, 490, 518, 740, 980, 1036, 1295, 1813, 2153, 2590, 3626, 4306, 5180, 7252, 8612, 9065, 10765, 15071, 18130, 21530, 30142, 36260, 43060, 60284, 75355, 79661, 105497, 150710, 159322, 210994, 301420, 318644, 398305, 421988, 527485, 557627, 796610, 1054970, 1115254, 1593220, 2109940, 2230508, 2788135, 3903389, 5576270, 7806778, 11152540, 15613556, 19516945, 39033890, 78067780]

約数ペア:

[(1, 78067780), (2, 39033890), (4, 19516945), (5, 15613556), (7, 11152540), (10, 7806778), (14, 5576270), (20, 3903389), (28, 2788135), (35, 2230508), (37, 2109940), (49, 1593220), (70, 1115254), (74, 1054970), (98, 796610), (140, 557627), (148, 527485), (185, 421988), (196, 398305), (245, 318644), (259, 301420), (370, 210994), (490, 159322), (518, 150710), (740, 105497), (980, 79661), (1036, 75355), (1295, 60284), (1813, 43060), (2153, 36260), (2590, 30142), (3626, 21530), (4306, 18130), (5180, 15071), (7252, 10765), (8612, 9065)]