81595196

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{431}}^1$

素因数の和:554

約数の個数: 48

約数和(自身を含む): 156764160

約数和(自身を除く): 75168964

約数列:

[1, 2, 4, 19, 38, 47, 53, 76, 94, 106, 188, 212, 431, 862, 893, 1007, 1724, 1786, 2014, 2491, 3572, 4028, 4982, 8189, 9964, 16378, 20257, 22843, 32756, 40514, 45686, 47329, 81028, 91372, 94658, 189316, 384883, 434017, 769766, 868034, 1073621, 1539532, 1736068, 2147242, 4294484, 20398799, 40797598, 81595196]

約数ペア:

[(1, 81595196), (2, 40797598), (4, 20398799), (19, 4294484), (38, 2147242), (47, 1736068), (53, 1539532), (76, 1073621), (94, 868034), (106, 769766), (188, 434017), (212, 384883), (431, 189316), (862, 94658), (893, 91372), (1007, 81028), (1724, 47329), (1786, 45686), (2014, 40514), (2491, 32756), (3572, 22843), (4028, 20257), (4982, 16378), (8189, 9964)]