81979324

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{491}}^1$

素因数の和:658

約数の個数: 48

約数和(自身を含む): 168618240

約数和(自身を除く): 86638916

約数列:

[1, 2, 4, 7, 14, 28, 67, 89, 134, 178, 268, 356, 469, 491, 623, 938, 982, 1246, 1876, 1964, 2492, 3437, 5963, 6874, 11926, 13748, 23852, 32897, 41741, 43699, 65794, 83482, 87398, 131588, 166964, 174796, 230279, 305893, 460558, 611786, 921116, 1223572, 2927833, 5855666, 11711332, 20494831, 40989662, 81979324]

約数ペア:

[(1, 81979324), (2, 40989662), (4, 20494831), (7, 11711332), (14, 5855666), (28, 2927833), (67, 1223572), (89, 921116), (134, 611786), (178, 460558), (268, 305893), (356, 230279), (469, 174796), (491, 166964), (623, 131588), (938, 87398), (982, 83482), (1246, 65794), (1876, 43699), (1964, 41741), (2492, 32897), (3437, 23852), (5963, 13748), (6874, 11926)]