81756688

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{8363}}^1$

素因数の和:8431

約数の個数: 40

約数和(自身を含む): 174238848

約数和(自身を除く): 92482160

約数列:

[1, 2, 4, 8, 13, 16, 26, 47, 52, 94, 104, 188, 208, 376, 611, 752, 1222, 2444, 4888, 8363, 9776, 16726, 33452, 66904, 108719, 133808, 217438, 393061, 434876, 786122, 869752, 1572244, 1739504, 3144488, 5109793, 6288976, 10219586, 20439172, 40878344, 81756688]

約数ペア:

[(1, 81756688), (2, 40878344), (4, 20439172), (8, 10219586), (13, 6288976), (16, 5109793), (26, 3144488), (47, 1739504), (52, 1572244), (94, 869752), (104, 786122), (188, 434876), (208, 393061), (376, 217438), (611, 133808), (752, 108719), (1222, 66904), (2444, 33452), (4888, 16726), (8363, 9776)]