20565751168

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{661}}^1\times {\mathrm{7841}}^1$

素因数の和:8547

約数の個数: 64

約数和(自身を含む): 42361856640

約数和(自身を除く): 21796105472

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 661, 992, 1322, 1984, 2644, 3968, 5288, 7841, 10576, 15682, 20491, 21152, 31364, 40982, 42304, 62728, 81964, 84608, 125456, 163928, 243071, 250912, 327856, 486142, 501824, 655712, 972284, 1003648, 1311424, 1944568, 2622848, 3889136, 5182901, 7778272, 10365802, 15556544, 20731604, 31113088, 41463208, 82926416, 160669931, 165852832, 321339862, 331705664, 642679724, 663411328, 1285359448, 2570718896, 5141437792, 10282875584, 20565751168]

約数ペア:

[(1, 20565751168), (2, 10282875584), (4, 5141437792), (8, 2570718896), (16, 1285359448), (31, 663411328), (32, 642679724), (62, 331705664), (64, 321339862), (124, 165852832), (128, 160669931), (248, 82926416), (496, 41463208), (661, 31113088), (992, 20731604), (1322, 15556544), (1984, 10365802), (2644, 7778272), (3968, 5182901), (5288, 3889136), (7841, 2622848), (10576, 1944568), (15682, 1311424), (20491, 1003648), (21152, 972284), (31364, 655712), (40982, 501824), (42304, 486142), (62728, 327856), (81964, 250912), (84608, 243071), (125456, 163928)]